Home / 478,734.20-660,641.46-263,869.52

Finding the Fourth Proportional to 478,734.20, 660,641.46 and 263,869.52

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Solution

The fourth proportional to 478,734.20, 660,641.46 and 263,869.52 is: 364,133.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,734.20 : 660,641.46 = 263,869.52 : x
  2. Step 2: Convert to fraction form
    478,734.20/660,641.46 = 263,869.52/x
  3. Step 3: Cross multiply
    478,734.20x = 660,641.46 × 263,869.52
  4. Step 4: Simplify right side
    478,734.20x = 174,323,144,942.30
  5. Step 5: Solve for x
    x = 174,323,144,942.30/478,734.20
  6. Step 6: Final answer
    x = 364,133.47

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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.