Home / 657,549.32-907,366.38-402,865.88

Finding the Fourth Proportional to 657,549.32, 907,366.38 and 402,865.88

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Solution

The fourth proportional to 657,549.32, 907,366.38 and 402,865.88 is: 555,923.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,549.32 : 907,366.38 = 402,865.88 : x
  2. Step 2: Convert to fraction form
    657,549.32/907,366.38 = 402,865.88/x
  3. Step 3: Cross multiply
    657,549.32x = 907,366.38 × 402,865.88
  4. Step 4: Simplify right side
    657,549.32x = 365,546,955,161.11
  5. Step 5: Solve for x
    x = 365,546,955,161.11/657,549.32
  6. Step 6: Final answer
    x = 555,923.25

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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.