Home / 812,496.98-1,218,742.48-243,875.61

Finding the Fourth Proportional to 812,496.98, 1,218,742.48 and 243,875.61

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Solution

The fourth proportional to 812,496.98, 1,218,742.48 and 243,875.61 is: 365,812.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,496.98 : 1,218,742.48 = 243,875.61 : x
  2. Step 2: Convert to fraction form
    812,496.98/1,218,742.48 = 243,875.61/x
  3. Step 3: Cross multiply
    812,496.98x = 1,218,742.48 × 243,875.61
  4. Step 4: Simplify right side
    812,496.98x = 297,221,565,742.91
  5. Step 5: Solve for x
    x = 297,221,565,742.91/812,496.98
  6. Step 6: Final answer
    x = 365,812.52

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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.