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Finding the Fourth Proportional to 526,892.10, 788,005.35 and 442,911.30

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Solution

The fourth proportional to 526,892.10, 788,005.35 and 442,911.30 is: 662,405.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,892.10 : 788,005.35 = 442,911.30 : x
  2. Step 2: Convert to fraction form
    526,892.10/788,005.35 = 442,911.30/x
  3. Step 3: Cross multiply
    526,892.10x = 788,005.35 × 442,911.30
  4. Step 4: Simplify right side
    526,892.10x = 349,016,473,975.46
  5. Step 5: Solve for x
    x = 349,016,473,975.46/526,892.10
  6. Step 6: Final answer
    x = 662,405.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.