Home / 424,389.45-636,864.60-199,814.10

Finding the Fourth Proportional to 424,389.45, 636,864.60 and 199,814.10

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Solution

The fourth proportional to 424,389.45, 636,864.60 and 199,814.10 is: 299,853.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,389.45 : 636,864.60 = 199,814.10 : x
  2. Step 2: Convert to fraction form
    424,389.45/636,864.60 = 199,814.10/x
  3. Step 3: Cross multiply
    424,389.45x = 636,864.60 × 199,814.10
  4. Step 4: Simplify right side
    424,389.45x = 127,254,526,870.86
  5. Step 5: Solve for x
    x = 127,254,526,870.86/424,389.45
  6. Step 6: Final answer
    x = 299,853.18

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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.