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Finding the Fourth Proportional to 657,740.52, 907,682.72 and 355,934.52

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Solution

The fourth proportional to 657,740.52, 907,682.72 and 355,934.52 is: 491,190.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,740.52 : 907,682.72 = 355,934.52 : x
  2. Step 2: Convert to fraction form
    657,740.52/907,682.72 = 355,934.52/x
  3. Step 3: Cross multiply
    657,740.52x = 907,682.72 × 355,934.52
  4. Step 4: Simplify right side
    657,740.52x = 323,075,613,255.49
  5. Step 5: Solve for x
    x = 323,075,613,255.49/657,740.52
  6. Step 6: Final answer
    x = 491,190.07

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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.