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Finding the Fourth Proportional to 607,098.30, 911,230.65 and 307,916.70

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Solution

The fourth proportional to 607,098.30, 911,230.65 and 307,916.70 is: 462,170.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,098.30 : 911,230.65 = 307,916.70 : x
  2. Step 2: Convert to fraction form
    607,098.30/911,230.65 = 307,916.70/x
  3. Step 3: Cross multiply
    607,098.30x = 911,230.65 × 307,916.70
  4. Step 4: Simplify right side
    607,098.30x = 280,583,134,686.86
  5. Step 5: Solve for x
    x = 280,583,134,686.86/607,098.30
  6. Step 6: Final answer
    x = 462,170.85

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1.5x scale

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.