Home / 775,444.92-1,070,043.39-448,701.45

Finding the Fourth Proportional to 775,444.92, 1,070,043.39 and 448,701.45

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Solution

The fourth proportional to 775,444.92, 1,070,043.39 and 448,701.45 is: 619,167.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,444.92 : 1,070,043.39 = 448,701.45 : x
  2. Step 2: Convert to fraction form
    775,444.92/1,070,043.39 = 448,701.45/x
  3. Step 3: Cross multiply
    775,444.92x = 1,070,043.39 × 448,701.45
  4. Step 4: Simplify right side
    775,444.92x = 480,130,020,655.92
  5. Step 5: Solve for x
    x = 480,130,020,655.92/775,444.92
  6. Step 6: Final answer
    x = 619,167.15

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.