Home / 790,700.61-1,091,167.35-428,124.71

Finding the Fourth Proportional to 790,700.61, 1,091,167.35 and 428,124.71

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Solution

The fourth proportional to 790,700.61, 1,091,167.35 and 428,124.71 is: 590,812.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,700.61 : 1,091,167.35 = 428,124.71 : x
  2. Step 2: Convert to fraction form
    790,700.61/1,091,167.35 = 428,124.71/x
  3. Step 3: Cross multiply
    790,700.61x = 1,091,167.35 × 428,124.71
  4. Step 4: Simplify right side
    790,700.61x = 467,155,699,824.38
  5. Step 5: Solve for x
    x = 467,155,699,824.38/790,700.61
  6. Step 6: Final answer
    x = 590,812.37

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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.