Home / 947,820.60-1,418,966.10-920,172.60

Finding the Fourth Proportional to 947,820.60, 1,418,966.10 and 920,172.60

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Solution

The fourth proportional to 947,820.60, 1,418,966.10 and 920,172.60 is: 1,377,574.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,820.60 : 1,418,966.10 = 920,172.60 : x
  2. Step 2: Convert to fraction form
    947,820.60/1,418,966.10 = 920,172.60/x
  3. Step 3: Cross multiply
    947,820.60x = 1,418,966.10 × 920,172.60
  4. Step 4: Simplify right side
    947,820.60x = 1,305,693,725,548.86
  5. Step 5: Solve for x
    x = 1,305,693,725,548.86/947,820.60
  6. Step 6: Final answer
    x = 1,377,574.75

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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.