Home / 672,947.74-928,723.71-386,523.10

Finding the Fourth Proportional to 672,947.74, 928,723.71 and 386,523.10

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Solution

The fourth proportional to 672,947.74, 928,723.71 and 386,523.10 is: 533,433.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,947.74 : 928,723.71 = 386,523.10 : x
  2. Step 2: Convert to fraction form
    672,947.74/928,723.71 = 386,523.10/x
  3. Step 3: Cross multiply
    672,947.74x = 928,723.71 × 386,523.10
  4. Step 4: Simplify right side
    672,947.74x = 358,973,167,432.70
  5. Step 5: Solve for x
    x = 358,973,167,432.70/672,947.74
  6. Step 6: Final answer
    x = 533,433.94

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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.