Home / 926,821.80-1,390,232.70-727,756.20

Finding the Fourth Proportional to 926,821.80, 1,390,232.70 and 727,756.20

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Solution

The fourth proportional to 926,821.80, 1,390,232.70 and 727,756.20 is: 1,091,634.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,821.80 : 1,390,232.70 = 727,756.20 : x
  2. Step 2: Convert to fraction form
    926,821.80/1,390,232.70 = 727,756.20/x
  3. Step 3: Cross multiply
    926,821.80x = 1,390,232.70 × 727,756.20
  4. Step 4: Simplify right side
    926,821.80x = 1,011,750,466,867.74
  5. Step 5: Solve for x
    x = 1,011,750,466,867.74/926,821.80
  6. Step 6: Final answer
    x = 1,091,634.30

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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.