Home / 1,377,281.20-2,065,921.80-952,128.40

Finding the Fourth Proportional to 1,377,281.20, 2,065,921.80 and 952,128.40

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Solution

The fourth proportional to 1,377,281.20, 2,065,921.80 and 952,128.40 is: 1,428,192.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,281.20 : 2,065,921.80 = 952,128.40 : x
  2. Step 2: Convert to fraction form
    1,377,281.20/2,065,921.80 = 952,128.40/x
  3. Step 3: Cross multiply
    1,377,281.20x = 2,065,921.80 × 952,128.40
  4. Step 4: Simplify right side
    1,377,281.20x = 1,967,022,817,959.12
  5. Step 5: Solve for x
    x = 1,967,022,817,959.12/1,377,281.20
  6. Step 6: Final answer
    x = 1,428,192.60

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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.