Home / 1,020,678.20-1,531,238.64-310,687.72

Finding the Fourth Proportional to 1,020,678.20, 1,531,238.64 and 310,687.72

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Solution

The fourth proportional to 1,020,678.20, 1,531,238.64 and 310,687.72 is: 466,098.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,678.20 : 1,531,238.64 = 310,687.72 : x
  2. Step 2: Convert to fraction form
    1,020,678.20/1,531,238.64 = 310,687.72/x
  3. Step 3: Cross multiply
    1,020,678.20x = 1,531,238.64 × 310,687.72
  4. Step 4: Simplify right side
    1,020,678.20x = 475,737,041,837.50
  5. Step 5: Solve for x
    x = 475,737,041,837.50/1,020,678.20
  6. Step 6: Final answer
    x = 466,098.95

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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.