Home / 665,036.20-997,554.30-310,086.10

Finding the Fourth Proportional to 665,036.20, 997,554.30 and 310,086.10

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Solution

The fourth proportional to 665,036.20, 997,554.30 and 310,086.10 is: 465,129.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,036.20 : 997,554.30 = 310,086.10 : x
  2. Step 2: Convert to fraction form
    665,036.20/997,554.30 = 310,086.10/x
  3. Step 3: Cross multiply
    665,036.20x = 997,554.30 × 310,086.10
  4. Step 4: Simplify right side
    665,036.20x = 309,327,722,425.23
  5. Step 5: Solve for x
    x = 309,327,722,425.23/665,036.20
  6. Step 6: Final answer
    x = 465,129.15

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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.