Home / 579,001.42-868,802.15-387,010.15

Finding the Fourth Proportional to 579,001.42, 868,802.15 and 387,010.15

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Solution

The fourth proportional to 579,001.42, 868,802.15 and 387,010.15 is: 580,715.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,001.42 : 868,802.15 = 387,010.15 : x
  2. Step 2: Convert to fraction form
    579,001.42/868,802.15 = 387,010.15/x
  3. Step 3: Cross multiply
    579,001.42x = 868,802.15 × 387,010.15
  4. Step 4: Simplify right side
    579,001.42x = 336,235,254,074.36
  5. Step 5: Solve for x
    x = 336,235,254,074.36/579,001.42
  6. Step 6: Final answer
    x = 580,715.77

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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.