Home / 887,030.10-1,329,816.15-381,978.90

Finding the Fourth Proportional to 887,030.10, 1,329,816.15 and 381,978.90

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Solution

The fourth proportional to 887,030.10, 1,329,816.15 and 381,978.90 is: 572,654.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,030.10 : 1,329,816.15 = 381,978.90 : x
  2. Step 2: Convert to fraction form
    887,030.10/1,329,816.15 = 381,978.90/x
  3. Step 3: Cross multiply
    887,030.10x = 1,329,816.15 × 381,978.90
  4. Step 4: Simplify right side
    887,030.10x = 507,961,710,179.24
  5. Step 5: Solve for x
    x = 507,961,710,179.24/887,030.10
  6. Step 6: Final answer
    x = 572,654.42

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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.