Home / 642,060.86-886,053.27-370,123.81

Finding the Fourth Proportional to 642,060.86, 886,053.27 and 370,123.81

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Solution

The fourth proportional to 642,060.86, 886,053.27 and 370,123.81 is: 510,776.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,060.86 : 886,053.27 = 370,123.81 : x
  2. Step 2: Convert to fraction form
    642,060.86/886,053.27 = 370,123.81/x
  3. Step 3: Cross multiply
    642,060.86x = 886,053.27 × 370,123.81
  4. Step 4: Simplify right side
    642,060.86x = 327,949,412,155.36
  5. Step 5: Solve for x
    x = 327,949,412,155.36/642,060.86
  6. Step 6: Final answer
    x = 510,776.21

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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.