Home / 672,946.74-928,722.33-386,522.10

Finding the Fourth Proportional to 672,946.74, 928,722.33 and 386,522.10

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Solution

The fourth proportional to 672,946.74, 928,722.33 and 386,522.10 is: 533,432.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,946.74 : 928,722.33 = 386,522.10 : x
  2. Step 2: Convert to fraction form
    672,946.74/928,722.33 = 386,522.10/x
  3. Step 3: Cross multiply
    672,946.74x = 928,722.33 × 386,522.10
  4. Step 4: Simplify right side
    672,946.74x = 358,971,705,308.49
  5. Step 5: Solve for x
    x = 358,971,705,308.49/672,946.74
  6. Step 6: Final answer
    x = 533,432.56

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Double scale
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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.