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Finding the Fourth Proportional to 607,502.40, 911,253.60 and 406,735.80

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Solution

The fourth proportional to 607,502.40, 911,253.60 and 406,735.80 is: 610,103.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,502.40 : 911,253.60 = 406,735.80 : x
  2. Step 2: Convert to fraction form
    607,502.40/911,253.60 = 406,735.80/x
  3. Step 3: Cross multiply
    607,502.40x = 911,253.60 × 406,735.80
  4. Step 4: Simplify right side
    607,502.40x = 370,639,461,998.88
  5. Step 5: Solve for x
    x = 370,639,461,998.88/607,502.40
  6. Step 6: Final answer
    x = 610,103.70

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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.