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Finding the Fourth Proportional to 657,807.40, 907,774.26 and 356,001.40

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Solution

The fourth proportional to 657,807.40, 907,774.26 and 356,001.40 is: 491,281.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,807.40 : 907,774.26 = 356,001.40 : x
  2. Step 2: Convert to fraction form
    657,807.40/907,774.26 = 356,001.40/x
  3. Step 3: Cross multiply
    657,807.40x = 907,774.26 × 356,001.40
  4. Step 4: Simplify right side
    657,807.40x = 323,168,907,443.96
  5. Step 5: Solve for x
    x = 323,168,907,443.96/657,807.40
  6. Step 6: Final answer
    x = 491,281.96

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.