Home / 775,555.51-1,163,331.51-369,515.20

Finding the Fourth Proportional to 775,555.51, 1,163,331.51 and 369,515.20

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Solution

The fourth proportional to 775,555.51, 1,163,331.51 and 369,515.20 is: 554,271.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,555.51 : 1,163,331.51 = 369,515.20 : x
  2. Step 2: Convert to fraction form
    775,555.51/1,163,331.51 = 369,515.20/x
  3. Step 3: Cross multiply
    775,555.51x = 1,163,331.51 × 369,515.20
  4. Step 4: Simplify right side
    775,555.51x = 429,868,675,583.95
  5. Step 5: Solve for x
    x = 429,868,675,583.95/775,555.51
  6. Step 6: Final answer
    x = 554,271.96

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.