Home / 947,017.59-1,306,884.22-511,434.90

Finding the Fourth Proportional to 947,017.59, 1,306,884.22 and 511,434.90

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Solution

The fourth proportional to 947,017.59, 1,306,884.22 and 511,434.90 is: 705,780.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,017.59 : 1,306,884.22 = 511,434.90 : x
  2. Step 2: Convert to fraction form
    947,017.59/1,306,884.22 = 511,434.90/x
  3. Step 3: Cross multiply
    947,017.59x = 1,306,884.22 × 511,434.90
  4. Step 4: Simplify right side
    947,017.59x = 668,386,193,832.86
  5. Step 5: Solve for x
    x = 668,386,193,832.86/947,017.59
  6. Step 6: Final answer
    x = 705,780.13

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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.