Home / 723,947.76-1,080,043.40-684,756.72

Finding the Fourth Proportional to 723,947.76, 1,080,043.40 and 684,756.72

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Solution

The fourth proportional to 723,947.76, 1,080,043.40 and 684,756.72 is: 1,021,575.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,947.76 : 1,080,043.40 = 684,756.72 : x
  2. Step 2: Convert to fraction form
    723,947.76/1,080,043.40 = 684,756.72/x
  3. Step 3: Cross multiply
    723,947.76x = 1,080,043.40 × 684,756.72
  4. Step 4: Simplify right side
    723,947.76x = 739,566,972,617.86
  5. Step 5: Solve for x
    x = 739,566,972,617.86/723,947.76
  6. Step 6: Final answer
    x = 1,021,575.05

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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.