Home / 790,655.74-1,090,659.50-500,177.18

Finding the Fourth Proportional to 790,655.74, 1,090,659.50 and 500,177.18

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Solution

The fourth proportional to 790,655.74, 1,090,659.50 and 500,177.18 is: 689,962.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,655.74 : 1,090,659.50 = 500,177.18 : x
  2. Step 2: Convert to fraction form
    790,655.74/1,090,659.50 = 500,177.18/x
  3. Step 3: Cross multiply
    790,655.74x = 1,090,659.50 × 500,177.18
  4. Step 4: Simplify right side
    790,655.74x = 545,522,995,151.64
  5. Step 5: Solve for x
    x = 545,522,995,151.64/790,655.74
  6. Step 6: Final answer
    x = 689,962.74

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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.