Home / 980,670.80-1,353,242.76-550,917.20

Finding the Fourth Proportional to 980,670.80, 1,353,242.76 and 550,917.20

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Solution

The fourth proportional to 980,670.80, 1,353,242.76 and 550,917.20 is: 760,219.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,670.80 : 1,353,242.76 = 550,917.20 : x
  2. Step 2: Convert to fraction form
    980,670.80/1,353,242.76 = 550,917.20/x
  3. Step 3: Cross multiply
    980,670.80x = 1,353,242.76 × 550,917.20
  4. Step 4: Simplify right side
    980,670.80x = 745,524,712,259.47
  5. Step 5: Solve for x
    x = 745,524,712,259.47/980,670.80
  6. Step 6: Final answer
    x = 760,219.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.