Home / 980,020.80-1,352,345.76-550,267.20

Finding the Fourth Proportional to 980,020.80, 1,352,345.76 and 550,267.20

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Solution

The fourth proportional to 980,020.80, 1,352,345.76 and 550,267.20 is: 759,322.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,020.80 : 1,352,345.76 = 550,267.20 : x
  2. Step 2: Convert to fraction form
    980,020.80/1,352,345.76 = 550,267.20/x
  3. Step 3: Cross multiply
    980,020.80x = 1,352,345.76 × 550,267.20
  4. Step 4: Simplify right side
    980,020.80x = 744,151,514,787.07
  5. Step 5: Solve for x
    x = 744,151,514,787.07/980,020.80
  6. Step 6: Final answer
    x = 759,322.16

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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.