Home / 517,850.12-777,077.10-218,312.36

Finding the Fourth Proportional to 517,850.12, 777,077.10 and 218,312.36

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Solution

The fourth proportional to 517,850.12, 777,077.10 and 218,312.36 is: 327,595.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,850.12 : 777,077.10 = 218,312.36 : x
  2. Step 2: Convert to fraction form
    517,850.12/777,077.10 = 218,312.36/x
  3. Step 3: Cross multiply
    517,850.12x = 777,077.10 × 218,312.36
  4. Step 4: Simplify right side
    517,850.12x = 169,645,535,602.96
  5. Step 5: Solve for x
    x = 169,645,535,602.96/517,850.12
  6. Step 6: Final answer
    x = 327,595.82

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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.