Home / 449,822.18-674,633.64-129,904.40

Finding the Fourth Proportional to 449,822.18, 674,633.64 and 129,904.40

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Solution

The fourth proportional to 449,822.18, 674,633.64 and 129,904.40 is: 194,827.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,822.18 : 674,633.64 = 129,904.40 : x
  2. Step 2: Convert to fraction form
    449,822.18/674,633.64 = 129,904.40/x
  3. Step 3: Cross multiply
    449,822.18x = 674,633.64 × 129,904.40
  4. Step 4: Simplify right side
    449,822.18x = 87,637,878,224.02
  5. Step 5: Solve for x
    x = 87,637,878,224.02/449,822.18
  6. Step 6: Final answer
    x = 194,827.83

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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.