Home / 861,446.61-1,292,235.53-262,458.90

Finding the Fourth Proportional to 861,446.61, 1,292,235.53 and 262,458.90

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Solution

The fourth proportional to 861,446.61, 1,292,235.53 and 262,458.90 is: 393,708.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,446.61 : 1,292,235.53 = 262,458.90 : x
  2. Step 2: Convert to fraction form
    861,446.61/1,292,235.53 = 262,458.90/x
  3. Step 3: Cross multiply
    861,446.61x = 1,292,235.53 × 262,458.90
  4. Step 4: Simplify right side
    861,446.61x = 339,158,714,432.42
  5. Step 5: Solve for x
    x = 339,158,714,432.42/861,446.61
  6. Step 6: Final answer
    x = 393,708.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.