Home / 842,666.40-1,263,999.60-559,231.20

Finding the Fourth Proportional to 842,666.40, 1,263,999.60 and 559,231.20

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Solution

The fourth proportional to 842,666.40, 1,263,999.60 and 559,231.20 is: 838,846.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,666.40 : 1,263,999.60 = 559,231.20 : x
  2. Step 2: Convert to fraction form
    842,666.40/1,263,999.60 = 559,231.20/x
  3. Step 3: Cross multiply
    842,666.40x = 1,263,999.60 × 559,231.20
  4. Step 4: Simplify right side
    842,666.40x = 706,868,013,107.52
  5. Step 5: Solve for x
    x = 706,868,013,107.52/842,666.40
  6. Step 6: Final answer
    x = 838,846.80

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Similar ratio
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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.