Home / 1,247,442.80-1,869,013.80-581,228.40

Finding the Fourth Proportional to 1,247,442.80, 1,869,013.80 and 581,228.40

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Solution

The fourth proportional to 1,247,442.80, 1,869,013.80 and 581,228.40 is: 870,840.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,442.80 : 1,869,013.80 = 581,228.40 : x
  2. Step 2: Convert to fraction form
    1,247,442.80/1,869,013.80 = 581,228.40/x
  3. Step 3: Cross multiply
    1,247,442.80x = 1,869,013.80 × 581,228.40
  4. Step 4: Simplify right side
    1,247,442.80x = 1,086,323,900,551.92
  5. Step 5: Solve for x
    x = 1,086,323,900,551.92/1,247,442.80
  6. Step 6: Final answer
    x = 870,840.65

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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.