Home / 1,015,079.61-1,402,326.36-667,042.86

Finding the Fourth Proportional to 1,015,079.61, 1,402,326.36 and 667,042.86

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Solution

The fourth proportional to 1,015,079.61, 1,402,326.36 and 667,042.86 is: 921,515.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,015,079.61 : 1,402,326.36 = 667,042.86 : x
  2. Step 2: Convert to fraction form
    1,015,079.61/1,402,326.36 = 667,042.86/x
  3. Step 3: Cross multiply
    1,015,079.61x = 1,402,326.36 × 667,042.86
  4. Step 4: Simplify right side
    1,015,079.61x = 935,411,785,827.79
  5. Step 5: Solve for x
    x = 935,411,785,827.79/1,015,079.61
  6. Step 6: Final answer
    x = 921,515.69

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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.