Home / 1,377,641.64-2,065,474.84-647,756.32

Finding the Fourth Proportional to 1,377,641.64, 2,065,474.84 and 647,756.32

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Solution

The fourth proportional to 1,377,641.64, 2,065,474.84 and 647,756.32 is: 971,170.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,641.64 : 2,065,474.84 = 647,756.32 : x
  2. Step 2: Convert to fraction form
    1,377,641.64/2,065,474.84 = 647,756.32/x
  3. Step 3: Cross multiply
    1,377,641.64x = 2,065,474.84 × 647,756.32
  4. Step 4: Simplify right side
    1,377,641.64x = 1,337,924,381,410.99
  5. Step 5: Solve for x
    x = 1,337,924,381,410.99/1,377,641.64
  6. Step 6: Final answer
    x = 971,170.11

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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.