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Finding the Fourth Proportional to 657,493.13, 907,340.52 and 355,687.13

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Solution

The fourth proportional to 657,493.13, 907,340.52 and 355,687.13 is: 490,848.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,493.13 : 907,340.52 = 355,687.13 : x
  2. Step 2: Convert to fraction form
    657,493.13/907,340.52 = 355,687.13/x
  3. Step 3: Cross multiply
    657,493.13x = 907,340.52 × 355,687.13
  4. Step 4: Simplify right side
    657,493.13x = 322,729,340,954.81
  5. Step 5: Solve for x
    x = 322,729,340,954.81/657,493.13
  6. Step 6: Final answer
    x = 490,848.24

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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.