Home / 452,389.23-678,607.20-115,432.83

Finding the Fourth Proportional to 452,389.23, 678,607.20 and 115,432.83

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Solution

The fourth proportional to 452,389.23, 678,607.20 and 115,432.83 is: 173,155.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,389.23 : 678,607.20 = 115,432.83 : x
  2. Step 2: Convert to fraction form
    452,389.23/678,607.20 = 115,432.83/x
  3. Step 3: Cross multiply
    452,389.23x = 678,607.20 × 115,432.83
  4. Step 4: Simplify right side
    452,389.23x = 78,333,549,554.38
  5. Step 5: Solve for x
    x = 78,333,549,554.38/452,389.23
  6. Step 6: Final answer
    x = 173,155.20

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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.