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Finding the Fourth Proportional to 659,099.99, 909,545.94 and 372,620.16

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Solution

The fourth proportional to 659,099.99, 909,545.94 and 372,620.16 is: 514,209.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,099.99 : 909,545.94 = 372,620.16 : x
  2. Step 2: Convert to fraction form
    659,099.99/909,545.94 = 372,620.16/x
  3. Step 3: Cross multiply
    659,099.99x = 909,545.94 × 372,620.16
  4. Step 4: Simplify right side
    659,099.99x = 338,915,153,690.15
  5. Step 5: Solve for x
    x = 338,915,153,690.15/659,099.99
  6. Step 6: Final answer
    x = 514,209.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.