Home / 478,292.21-660,012.92-263,432.25

Finding the Fourth Proportional to 478,292.21, 660,012.92 and 263,432.25

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Solution

The fourth proportional to 478,292.21, 660,012.92 and 263,432.25 is: 363,519.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,292.21 : 660,012.92 = 263,432.25 : x
  2. Step 2: Convert to fraction form
    478,292.21/660,012.92 = 263,432.25/x
  3. Step 3: Cross multiply
    478,292.21x = 660,012.92 × 263,432.25
  4. Step 4: Simplify right side
    478,292.21x = 173,868,689,697.19
  5. Step 5: Solve for x
    x = 173,868,689,697.19/478,292.21
  6. Step 6: Final answer
    x = 363,519.80

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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.