Home / 725,416.38-1,000,019.51-506,946.78

Finding the Fourth Proportional to 725,416.38, 1,000,019.51 and 506,946.78

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Solution

The fourth proportional to 725,416.38, 1,000,019.51 and 506,946.78 is: 698,849.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,416.38 : 1,000,019.51 = 506,946.78 : x
  2. Step 2: Convert to fraction form
    725,416.38/1,000,019.51 = 506,946.78/x
  3. Step 3: Cross multiply
    725,416.38x = 1,000,019.51 × 506,946.78
  4. Step 4: Simplify right side
    725,416.38x = 506,956,670,531.68
  5. Step 5: Solve for x
    x = 506,956,670,531.68/725,416.38
  6. Step 6: Final answer
    x = 698,849.22

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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.