Home / 979,802.88-1,352,206.08-550,111.20

Finding the Fourth Proportional to 979,802.88, 1,352,206.08 and 550,111.20

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Solution

The fourth proportional to 979,802.88, 1,352,206.08 and 550,111.20 is: 759,197.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,802.88 : 1,352,206.08 = 550,111.20 : x
  2. Step 2: Convert to fraction form
    979,802.88/1,352,206.08 = 550,111.20/x
  3. Step 3: Cross multiply
    979,802.88x = 1,352,206.08 × 550,111.20
  4. Step 4: Simplify right side
    979,802.88x = 743,863,709,316.10
  5. Step 5: Solve for x
    x = 743,863,709,316.10/979,802.88
  6. Step 6: Final answer
    x = 759,197.31

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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.