Home / 864,080.10-1,296,120.15-761,436.90

Finding the Fourth Proportional to 864,080.10, 1,296,120.15 and 761,436.90

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Solution

The fourth proportional to 864,080.10, 1,296,120.15 and 761,436.90 is: 1,142,155.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,080.10 : 1,296,120.15 = 761,436.90 : x
  2. Step 2: Convert to fraction form
    864,080.10/1,296,120.15 = 761,436.90/x
  3. Step 3: Cross multiply
    864,080.10x = 1,296,120.15 × 761,436.90
  4. Step 4: Simplify right side
    864,080.10x = 986,913,709,043.54
  5. Step 5: Solve for x
    x = 986,913,709,043.54/864,080.10
  6. Step 6: Final answer
    x = 1,142,155.35

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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.