Home / 478,247.85-659,974.01-263,407.91

Finding the Fourth Proportional to 478,247.85, 659,974.01 and 263,407.91

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Solution

The fourth proportional to 478,247.85, 659,974.01 and 263,407.91 is: 363,498.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,247.85 : 659,974.01 = 263,407.91 : x
  2. Step 2: Convert to fraction form
    478,247.85/659,974.01 = 263,407.91/x
  3. Step 3: Cross multiply
    478,247.85x = 659,974.01 × 263,407.91
  4. Step 4: Simplify right side
    478,247.85x = 173,842,370,011.51
  5. Step 5: Solve for x
    x = 173,842,370,011.51/478,247.85
  6. Step 6: Final answer
    x = 363,498.49

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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.