Home / 974,139.20-1,461,208.80-442,698.20

Finding the Fourth Proportional to 974,139.20, 1,461,208.80 and 442,698.20

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Solution

The fourth proportional to 974,139.20, 1,461,208.80 and 442,698.20 is: 664,047.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    974,139.20 : 1,461,208.80 = 442,698.20 : x
  2. Step 2: Convert to fraction form
    974,139.20/1,461,208.80 = 442,698.20/x
  3. Step 3: Cross multiply
    974,139.20x = 1,461,208.80 × 442,698.20
  4. Step 4: Simplify right side
    974,139.20x = 646,874,505,584.16
  5. Step 5: Solve for x
    x = 646,874,505,584.16/974,139.20
  6. Step 6: Final answer
    x = 664,047.30

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Double scale
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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.