Home / 1,011,280.49-1,517,147.00-380,199.77

Finding the Fourth Proportional to 1,011,280.49, 1,517,147.00 and 380,199.77

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Solution

The fourth proportional to 1,011,280.49, 1,517,147.00 and 380,199.77 is: 570,384.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,011,280.49 : 1,517,147.00 = 380,199.77 : x
  2. Step 2: Convert to fraction form
    1,011,280.49/1,517,147.00 = 380,199.77/x
  3. Step 3: Cross multiply
    1,011,280.49x = 1,517,147.00 × 380,199.77
  4. Step 4: Simplify right side
    1,011,280.49x = 576,818,938,555.19
  5. Step 5: Solve for x
    x = 576,818,938,555.19/1,011,280.49
  6. Step 6: Final answer
    x = 570,384.72

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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.