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Finding the Fourth Proportional to 657,502.27, 907,504.22 and 385,657.76

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Solution

The fourth proportional to 657,502.27, 907,504.22 and 385,657.76 is: 532,296.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,502.27 : 907,504.22 = 385,657.76 : x
  2. Step 2: Convert to fraction form
    657,502.27/907,504.22 = 385,657.76/x
  3. Step 3: Cross multiply
    657,502.27x = 907,504.22 × 385,657.76
  4. Step 4: Simplify right side
    657,502.27x = 349,986,047,908.65
  5. Step 5: Solve for x
    x = 349,986,047,908.65/657,502.27
  6. Step 6: Final answer
    x = 532,296.34

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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.