Home / 979,840.59-1,352,160-550,120.56

Finding the Fourth Proportional to 979,840.59, 1,352,160 and 550,120.56

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Solution

The fourth proportional to 979,840.59, 1,352,160 and 550,120.56 is: 759,155.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,840.59 : 1,352,160 = 550,120.56 : x
  2. Step 2: Convert to fraction form
    979,840.59/1,352,160 = 550,120.56/x
  3. Step 3: Cross multiply
    979,840.59x = 1,352,160 × 550,120.56
  4. Step 4: Simplify right side
    979,840.59x = 743,851,016,409.60
  5. Step 5: Solve for x
    x = 743,851,016,409.60/979,840.59
  6. Step 6: Final answer
    x = 759,155.14

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1.5x scale

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.