Home / 555,845.40-766,981.83-314,039.75

Finding the Fourth Proportional to 555,845.40, 766,981.83 and 314,039.75

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Solution

The fourth proportional to 555,845.40, 766,981.83 and 314,039.75 is: 433,326.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,845.40 : 766,981.83 = 314,039.75 : x
  2. Step 2: Convert to fraction form
    555,845.40/766,981.83 = 314,039.75/x
  3. Step 3: Cross multiply
    555,845.40x = 766,981.83 × 314,039.75
  4. Step 4: Simplify right side
    555,845.40x = 240,862,781,189.02
  5. Step 5: Solve for x
    x = 240,862,781,189.02/555,845.40
  6. Step 6: Final answer
    x = 433,326.93

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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.