Home / 478,242.35-659,966.40-263,402.42

Finding the Fourth Proportional to 478,242.35, 659,966.40 and 263,402.42

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Solution

The fourth proportional to 478,242.35, 659,966.40 and 263,402.42 is: 363,490.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,242.35 : 659,966.40 = 263,402.42 : x
  2. Step 2: Convert to fraction form
    478,242.35/659,966.40 = 263,402.42/x
  3. Step 3: Cross multiply
    478,242.35x = 659,966.40 × 263,402.42
  4. Step 4: Simplify right side
    478,242.35x = 173,836,746,878.69
  5. Step 5: Solve for x
    x = 173,836,746,878.69/478,242.35
  6. Step 6: Final answer
    x = 363,490.91

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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.