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Finding the Fourth Proportional to 657,550.32, 907,367.76 and 402,866.88

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Solution

The fourth proportional to 657,550.32, 907,367.76 and 402,866.88 is: 555,924.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,550.32 : 907,367.76 = 402,866.88 : x
  2. Step 2: Convert to fraction form
    657,550.32/907,367.76 = 402,866.88/x
  3. Step 3: Cross multiply
    657,550.32x = 907,367.76 × 402,866.88
  4. Step 4: Simplify right side
    657,550.32x = 365,548,418,483.79
  5. Step 5: Solve for x
    x = 365,548,418,483.79/657,550.32
  6. Step 6: Final answer
    x = 555,924.63

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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.