Home / 715,439.80-1,073,159.70-536,980.60

Finding the Fourth Proportional to 715,439.80, 1,073,159.70 and 536,980.60

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Solution

The fourth proportional to 715,439.80, 1,073,159.70 and 536,980.60 is: 805,470.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,439.80 : 1,073,159.70 = 536,980.60 : x
  2. Step 2: Convert to fraction form
    715,439.80/1,073,159.70 = 536,980.60/x
  3. Step 3: Cross multiply
    715,439.80x = 1,073,159.70 × 536,980.60
  4. Step 4: Simplify right side
    715,439.80x = 576,265,939,601.82
  5. Step 5: Solve for x
    x = 576,265,939,601.82/715,439.80
  6. Step 6: Final answer
    x = 805,470.90

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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.