Home / 740,785.89-1,022,279.07-418,490.13

Finding the Fourth Proportional to 740,785.89, 1,022,279.07 and 418,490.13

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Solution

The fourth proportional to 740,785.89, 1,022,279.07 and 418,490.13 is: 577,513.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,785.89 : 1,022,279.07 = 418,490.13 : x
  2. Step 2: Convert to fraction form
    740,785.89/1,022,279.07 = 418,490.13/x
  3. Step 3: Cross multiply
    740,785.89x = 1,022,279.07 × 418,490.13
  4. Step 4: Simplify right side
    740,785.89x = 427,813,700,900.58
  5. Step 5: Solve for x
    x = 427,813,700,900.58/740,785.89
  6. Step 6: Final answer
    x = 577,513.30

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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.