Home / 866,009.80-1,299,044.40-266,966.20

Finding the Fourth Proportional to 866,009.80, 1,299,044.40 and 266,966.20

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Solution

The fourth proportional to 866,009.80, 1,299,044.40 and 266,966.20 is: 400,458.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,009.80 : 1,299,044.40 = 266,966.20 : x
  2. Step 2: Convert to fraction form
    866,009.80/1,299,044.40 = 266,966.20/x
  3. Step 3: Cross multiply
    866,009.80x = 1,299,044.40 × 266,966.20
  4. Step 4: Simplify right side
    866,009.80x = 346,800,947,099.28
  5. Step 5: Solve for x
    x = 346,800,947,099.28/866,009.80
  6. Step 6: Final answer
    x = 400,458.46

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1.5x scale

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.