Home / 1,295,507.88-1,787,803.28-722,585

Finding the Fourth Proportional to 1,295,507.88, 1,787,803.28 and 722,585

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Solution

The fourth proportional to 1,295,507.88, 1,787,803.28 and 722,585 is: 997,168.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,295,507.88 : 1,787,803.28 = 722,585 : x
  2. Step 2: Convert to fraction form
    1,295,507.88/1,787,803.28 = 722,585/x
  3. Step 3: Cross multiply
    1,295,507.88x = 1,787,803.28 × 722,585
  4. Step 4: Simplify right side
    1,295,507.88x = 1,291,839,833,078.80
  5. Step 5: Solve for x
    x = 1,291,839,833,078.80/1,295,507.88
  6. Step 6: Final answer
    x = 997,168.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.