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Finding the Fourth Proportional to 518,009.18, 777,013.77 and 378,041.18

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Solution

The fourth proportional to 518,009.18, 777,013.77 and 378,041.18 is: 567,061.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,009.18 : 777,013.77 = 378,041.18 : x
  2. Step 2: Convert to fraction form
    518,009.18/777,013.77 = 378,041.18/x
  3. Step 3: Cross multiply
    518,009.18x = 777,013.77 × 378,041.18
  4. Step 4: Simplify right side
    518,009.18x = 293,743,196,711.77
  5. Step 5: Solve for x
    x = 293,743,196,711.77/518,009.18
  6. Step 6: Final answer
    x = 567,061.76

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Similar ratio
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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.