Home / 1,005,811.47-1,387,680.11-570,182.10

Finding the Fourth Proportional to 1,005,811.47, 1,387,680.11 and 570,182.10

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Solution

The fourth proportional to 1,005,811.47, 1,387,680.11 and 570,182.10 is: 786,658.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,811.47 : 1,387,680.11 = 570,182.10 : x
  2. Step 2: Convert to fraction form
    1,005,811.47/1,387,680.11 = 570,182.10/x
  3. Step 3: Cross multiply
    1,005,811.47x = 1,387,680.11 × 570,182.10
  4. Step 4: Simplify right side
    1,005,811.47x = 791,230,359,248.03
  5. Step 5: Solve for x
    x = 791,230,359,248.03/1,005,811.47
  6. Step 6: Final answer
    x = 786,658.72

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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.