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Finding the Fourth Proportional to 607,032.40, 911,099.40 and 307,721.20

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Solution

The fourth proportional to 607,032.40, 911,099.40 and 307,721.20 is: 461,861.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,032.40 : 911,099.40 = 307,721.20 : x
  2. Step 2: Convert to fraction form
    607,032.40/911,099.40 = 307,721.20/x
  3. Step 3: Cross multiply
    607,032.40x = 911,099.40 × 307,721.20
  4. Step 4: Simplify right side
    607,032.40x = 280,364,600,687.28
  5. Step 5: Solve for x
    x = 280,364,600,687.28/607,032.40
  6. Step 6: Final answer
    x = 461,861.02

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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.