Home / 455,904.10-683,856.15-140,457.70

Finding the Fourth Proportional to 455,904.10, 683,856.15 and 140,457.70

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Solution

The fourth proportional to 455,904.10, 683,856.15 and 140,457.70 is: 210,686.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,904.10 : 683,856.15 = 140,457.70 : x
  2. Step 2: Convert to fraction form
    455,904.10/683,856.15 = 140,457.70/x
  3. Step 3: Cross multiply
    455,904.10x = 683,856.15 × 140,457.70
  4. Step 4: Simplify right side
    455,904.10x = 96,052,861,959.86
  5. Step 5: Solve for x
    x = 96,052,861,959.86/455,904.10
  6. Step 6: Final answer
    x = 210,686.55

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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.