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Finding the Fourth Proportional to 478,386.56, 660,148.98 and 263,522

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Solution

The fourth proportional to 478,386.56, 660,148.98 and 263,522 is: 363,646.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,386.56 : 660,148.98 = 263,522 : x
  2. Step 2: Convert to fraction form
    478,386.56/660,148.98 = 263,522/x
  3. Step 3: Cross multiply
    478,386.56x = 660,148.98 × 263,522
  4. Step 4: Simplify right side
    478,386.56x = 173,963,779,507.56
  5. Step 5: Solve for x
    x = 173,963,779,507.56/478,386.56
  6. Step 6: Final answer
    x = 363,646.88

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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.