Home / 727,374.20-1,091,061.23-278,140.50

Finding the Fourth Proportional to 727,374.20, 1,091,061.23 and 278,140.50

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Solution

The fourth proportional to 727,374.20, 1,091,061.23 and 278,140.50 is: 417,210.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,374.20 : 1,091,061.23 = 278,140.50 : x
  2. Step 2: Convert to fraction form
    727,374.20/1,091,061.23 = 278,140.50/x
  3. Step 3: Cross multiply
    727,374.20x = 1,091,061.23 × 278,140.50
  4. Step 4: Simplify right side
    727,374.20x = 303,468,314,652.11
  5. Step 5: Solve for x
    x = 303,468,314,652.11/727,374.20
  6. Step 6: Final answer
    x = 417,210.72

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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.