Home / 876,569.12-1,209,684.26-484,100.87

Finding the Fourth Proportional to 876,569.12, 1,209,684.26 and 484,100.87

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Solution

The fourth proportional to 876,569.12, 1,209,684.26 and 484,100.87 is: 668,069.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,569.12 : 1,209,684.26 = 484,100.87 : x
  2. Step 2: Convert to fraction form
    876,569.12/1,209,684.26 = 484,100.87/x
  3. Step 3: Cross multiply
    876,569.12x = 1,209,684.26 × 484,100.87
  4. Step 4: Simplify right side
    876,569.12x = 585,609,197,853.14
  5. Step 5: Solve for x
    x = 585,609,197,853.14/876,569.12
  6. Step 6: Final answer
    x = 668,069.62

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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.