Home / 711,040.28-1,063,939.59-426,903.48

Finding the Fourth Proportional to 711,040.28, 1,063,939.59 and 426,903.48

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Solution

The fourth proportional to 711,040.28, 1,063,939.59 and 426,903.48 is: 638,781.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,040.28 : 1,063,939.59 = 426,903.48 : x
  2. Step 2: Convert to fraction form
    711,040.28/1,063,939.59 = 426,903.48/x
  3. Step 3: Cross multiply
    711,040.28x = 1,063,939.59 × 426,903.48
  4. Step 4: Simplify right side
    711,040.28x = 454,199,513,480.77
  5. Step 5: Solve for x
    x = 454,199,513,480.77/711,040.28
  6. Step 6: Final answer
    x = 638,781.70

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1.5x scale

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.