Home / 1,073,321.20-1,609,981.80-805,632.40

Finding the Fourth Proportional to 1,073,321.20, 1,609,981.80 and 805,632.40

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Solution

The fourth proportional to 1,073,321.20, 1,609,981.80 and 805,632.40 is: 1,208,448.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,073,321.20 : 1,609,981.80 = 805,632.40 : x
  2. Step 2: Convert to fraction form
    1,073,321.20/1,609,981.80 = 805,632.40/x
  3. Step 3: Cross multiply
    1,073,321.20x = 1,609,981.80 × 805,632.40
  4. Step 4: Simplify right side
    1,073,321.20x = 1,297,053,501,490.32
  5. Step 5: Solve for x
    x = 1,297,053,501,490.32/1,073,321.20
  6. Step 6: Final answer
    x = 1,208,448.60

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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.