Home / 478,546.20-660,423.18-263,686.22

Finding the Fourth Proportional to 478,546.20, 660,423.18 and 263,686.22

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Solution

The fourth proportional to 478,546.20, 660,423.18 and 263,686.22 is: 363,903.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,546.20 : 660,423.18 = 263,686.22 : x
  2. Step 2: Convert to fraction form
    478,546.20/660,423.18 = 263,686.22/x
  3. Step 3: Cross multiply
    478,546.20x = 660,423.18 × 263,686.22
  4. Step 4: Simplify right side
    478,546.20x = 174,144,488,632.46
  5. Step 5: Solve for x
    x = 174,144,488,632.46/478,546.20
  6. Step 6: Final answer
    x = 363,903.19

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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.