Home / 980,518.40-1,469,731.20-558,886.40

Finding the Fourth Proportional to 980,518.40, 1,469,731.20 and 558,886.40

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Solution

The fourth proportional to 980,518.40, 1,469,731.20 and 558,886.40 is: 837,733.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,518.40 : 1,469,731.20 = 558,886.40 : x
  2. Step 2: Convert to fraction form
    980,518.40/1,469,731.20 = 558,886.40/x
  3. Step 3: Cross multiply
    980,518.40x = 1,469,731.20 × 558,886.40
  4. Step 4: Simplify right side
    980,518.40x = 821,412,779,335.68
  5. Step 5: Solve for x
    x = 821,412,779,335.68/980,518.40
  6. Step 6: Final answer
    x = 837,733.16

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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.