Home / 665,088.10-997,632.15-399,148.90

Finding the Fourth Proportional to 665,088.10, 997,632.15 and 399,148.90

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Solution

The fourth proportional to 665,088.10, 997,632.15 and 399,148.90 is: 598,723.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,088.10 : 997,632.15 = 399,148.90 : x
  2. Step 2: Convert to fraction form
    665,088.10/997,632.15 = 399,148.90/x
  3. Step 3: Cross multiply
    665,088.10x = 997,632.15 × 399,148.90
  4. Step 4: Simplify right side
    665,088.10x = 398,203,775,277.14
  5. Step 5: Solve for x
    x = 398,203,775,277.14/665,088.10
  6. Step 6: Final answer
    x = 598,723.35

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Similar ratio
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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.