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Finding the Fourth Proportional to 888,700.32, 1,226,403.10 and 480,800.86

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Solution

The fourth proportional to 888,700.32, 1,226,403.10 and 480,800.86 is: 663,503.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,700.32 : 1,226,403.10 = 480,800.86 : x
  2. Step 2: Convert to fraction form
    888,700.32/1,226,403.10 = 480,800.86/x
  3. Step 3: Cross multiply
    888,700.32x = 1,226,403.10 × 480,800.86
  4. Step 4: Simplify right side
    888,700.32x = 589,655,665,186.67
  5. Step 5: Solve for x
    x = 589,655,665,186.67/888,700.32
  6. Step 6: Final answer
    x = 663,503.38

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.