Home / 604,821.10-907,231.65-309,909.10

Finding the Fourth Proportional to 604,821.10, 907,231.65 and 309,909.10

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Solution

The fourth proportional to 604,821.10, 907,231.65 and 309,909.10 is: 464,863.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,821.10 : 907,231.65 = 309,909.10 : x
  2. Step 2: Convert to fraction form
    604,821.10/907,231.65 = 309,909.10/x
  3. Step 3: Cross multiply
    604,821.10x = 907,231.65 × 309,909.10
  4. Step 4: Simplify right side
    604,821.10x = 281,159,344,143.02
  5. Step 5: Solve for x
    x = 281,159,344,143.02/604,821.10
  6. Step 6: Final answer
    x = 464,863.65

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.