Home / 1,020,200.90-1,528,458.15-872,744.90

Finding the Fourth Proportional to 1,020,200.90, 1,528,458.15 and 872,744.90

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Solution

The fourth proportional to 1,020,200.90, 1,528,458.15 and 872,744.90 is: 1,307,540.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,200.90 : 1,528,458.15 = 872,744.90 : x
  2. Step 2: Convert to fraction form
    1,020,200.90/1,528,458.15 = 872,744.90/x
  3. Step 3: Cross multiply
    1,020,200.90x = 1,528,458.15 × 872,744.90
  4. Step 4: Simplify right side
    1,020,200.90x = 1,333,954,055,275.94
  5. Step 5: Solve for x
    x = 1,333,954,055,275.94/1,020,200.90
  6. Step 6: Final answer
    x = 1,307,540.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.