Home / 665,124.20-997,686.30-455,172.20

Finding the Fourth Proportional to 665,124.20, 997,686.30 and 455,172.20

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Solution

The fourth proportional to 665,124.20, 997,686.30 and 455,172.20 is: 682,758.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,124.20 : 997,686.30 = 455,172.20 : x
  2. Step 2: Convert to fraction form
    665,124.20/997,686.30 = 455,172.20/x
  3. Step 3: Cross multiply
    665,124.20x = 997,686.30 × 455,172.20
  4. Step 4: Simplify right side
    665,124.20x = 454,119,068,080.86
  5. Step 5: Solve for x
    x = 454,119,068,080.86/665,124.20
  6. Step 6: Final answer
    x = 682,758.30

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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.