Home / 980,789.40-1,353,490.56-551,069.28

Finding the Fourth Proportional to 980,789.40, 1,353,490.56 and 551,069.28

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Solution

The fourth proportional to 980,789.40, 1,353,490.56 and 551,069.28 is: 760,476.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,789.40 : 1,353,490.56 = 551,069.28 : x
  2. Step 2: Convert to fraction form
    980,789.40/1,353,490.56 = 551,069.28/x
  3. Step 3: Cross multiply
    980,789.40x = 1,353,490.56 × 551,069.28
  4. Step 4: Simplify right side
    980,789.40x = 745,867,068,386.00
  5. Step 5: Solve for x
    x = 745,867,068,386.00/980,789.40
  6. Step 6: Final answer
    x = 760,476.27

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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.