Home / 750,456.89-1,035,630.95-406,292.92

Finding the Fourth Proportional to 750,456.89, 1,035,630.95 and 406,292.92

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Solution

The fourth proportional to 750,456.89, 1,035,630.95 and 406,292.92 is: 560,684.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,456.89 : 1,035,630.95 = 406,292.92 : x
  2. Step 2: Convert to fraction form
    750,456.89/1,035,630.95 = 406,292.92/x
  3. Step 3: Cross multiply
    750,456.89x = 1,035,630.95 × 406,292.92
  4. Step 4: Simplify right side
    750,456.89x = 420,769,522,717.87
  5. Step 5: Solve for x
    x = 420,769,522,717.87/750,456.89
  6. Step 6: Final answer
    x = 560,684.47

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1.5x scale

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.