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Finding the Fourth Proportional to 657,108.70, 907,220.52 and 503,852.47

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Solution

The fourth proportional to 657,108.70, 907,220.52 and 503,852.47 is: 695,631.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,108.70 : 907,220.52 = 503,852.47 : x
  2. Step 2: Convert to fraction form
    657,108.70/907,220.52 = 503,852.47/x
  3. Step 3: Cross multiply
    657,108.70x = 907,220.52 × 503,852.47
  4. Step 4: Simplify right side
    657,108.70x = 457,105,297,568.63
  5. Step 5: Solve for x
    x = 457,105,297,568.63/657,108.70
  6. Step 6: Final answer
    x = 695,631.18

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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.