Home / 921,806.80-1,272,680.52-752,443.60

Finding the Fourth Proportional to 921,806.80, 1,272,680.52 and 752,443.60

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Solution

The fourth proportional to 921,806.80, 1,272,680.52 and 752,443.60 is: 1,038,851.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,806.80 : 1,272,680.52 = 752,443.60 : x
  2. Step 2: Convert to fraction form
    921,806.80/1,272,680.52 = 752,443.60/x
  3. Step 3: Cross multiply
    921,806.80x = 1,272,680.52 × 752,443.60
  4. Step 4: Simplify right side
    921,806.80x = 957,620,312,118.67
  5. Step 5: Solve for x
    x = 957,620,312,118.67/921,806.80
  6. Step 6: Final answer
    x = 1,038,851.43

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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.