Home / 578,451.12-867,359.16-178,980.72

Finding the Fourth Proportional to 578,451.12, 867,359.16 and 178,980.72

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Solution

The fourth proportional to 578,451.12, 867,359.16 and 178,980.72 is: 268,372.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,451.12 : 867,359.16 = 178,980.72 : x
  2. Step 2: Convert to fraction form
    578,451.12/867,359.16 = 178,980.72/x
  3. Step 3: Cross multiply
    578,451.12x = 867,359.16 × 178,980.72
  4. Step 4: Simplify right side
    578,451.12x = 155,240,566,955.40
  5. Step 5: Solve for x
    x = 155,240,566,955.40/578,451.12
  6. Step 6: Final answer
    x = 268,372.83

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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.