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Finding the Fourth Proportional to 750,470.76, 1,035,649.98 and 406,306.68

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Solution

The fourth proportional to 750,470.76, 1,035,649.98 and 406,306.68 is: 560,703.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,470.76 : 1,035,649.98 = 406,306.68 : x
  2. Step 2: Convert to fraction form
    750,470.76/1,035,649.98 = 406,306.68/x
  3. Step 3: Cross multiply
    750,470.76x = 1,035,649.98 × 406,306.68
  4. Step 4: Simplify right side
    750,470.76x = 420,791,505,015.87
  5. Step 5: Solve for x
    x = 420,791,505,015.87/750,470.76
  6. Step 6: Final answer
    x = 560,703.40

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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.