Home / 578,428.68-863,705.49-510,393.72

Finding the Fourth Proportional to 578,428.68, 863,705.49 and 510,393.72

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Solution

The fourth proportional to 578,428.68, 863,705.49 and 510,393.72 is: 762,116.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,428.68 : 863,705.49 = 510,393.72 : x
  2. Step 2: Convert to fraction form
    578,428.68/863,705.49 = 510,393.72/x
  3. Step 3: Cross multiply
    578,428.68x = 863,705.49 × 510,393.72
  4. Step 4: Simplify right side
    578,428.68x = 440,829,858,025.52
  5. Step 5: Solve for x
    x = 440,829,858,025.52/578,428.68
  6. Step 6: Final answer
    x = 762,116.18

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.