Home / 1,299,175.14-1,791,972.10-847,078.50

Finding the Fourth Proportional to 1,299,175.14, 1,791,972.10 and 847,078.50

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Solution

The fourth proportional to 1,299,175.14, 1,791,972.10 and 847,078.50 is: 1,168,388.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,175.14 : 1,791,972.10 = 847,078.50 : x
  2. Step 2: Convert to fraction form
    1,299,175.14/1,791,972.10 = 847,078.50/x
  3. Step 3: Cross multiply
    1,299,175.14x = 1,791,972.10 × 847,078.50
  4. Step 4: Simplify right side
    1,299,175.14x = 1,517,941,038,509.85
  5. Step 5: Solve for x
    x = 1,517,941,038,509.85/1,299,175.14
  6. Step 6: Final answer
    x = 1,168,388.30

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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.