Home / 1,022,139.40-1,533,209.10-348,980.80

Finding the Fourth Proportional to 1,022,139.40, 1,533,209.10 and 348,980.80

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Solution

The fourth proportional to 1,022,139.40, 1,533,209.10 and 348,980.80 is: 523,471.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,022,139.40 : 1,533,209.10 = 348,980.80 : x
  2. Step 2: Convert to fraction form
    1,022,139.40/1,533,209.10 = 348,980.80/x
  3. Step 3: Cross multiply
    1,022,139.40x = 1,533,209.10 × 348,980.80
  4. Step 4: Simplify right side
    1,022,139.40x = 535,060,538,285.28
  5. Step 5: Solve for x
    x = 535,060,538,285.28/1,022,139.40
  6. Step 6: Final answer
    x = 523,471.20

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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.