Home / 1,008,155.91-1,391,254.40-555,446.91

Finding the Fourth Proportional to 1,008,155.91, 1,391,254.40 and 555,446.91

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Solution

The fourth proportional to 1,008,155.91, 1,391,254.40 and 555,446.91 is: 766,516.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,155.91 : 1,391,254.40 = 555,446.91 : x
  2. Step 2: Convert to fraction form
    1,008,155.91/1,391,254.40 = 555,446.91/x
  3. Step 3: Cross multiply
    1,008,155.91x = 1,391,254.40 × 555,446.91
  4. Step 4: Simplify right side
    1,008,155.91x = 772,767,958,892.52
  5. Step 5: Solve for x
    x = 772,767,958,892.52/1,008,155.91
  6. Step 6: Final answer
    x = 766,516.32

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Double scale
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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.