Home / 805,822.90-1,209,665.55-432,574.90

Finding the Fourth Proportional to 805,822.90, 1,209,665.55 and 432,574.90

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Solution

The fourth proportional to 805,822.90, 1,209,665.55 and 432,574.90 is: 649,362.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,822.90 : 1,209,665.55 = 432,574.90 : x
  2. Step 2: Convert to fraction form
    805,822.90/1,209,665.55 = 432,574.90/x
  3. Step 3: Cross multiply
    805,822.90x = 1,209,665.55 × 432,574.90
  4. Step 4: Simplify right side
    805,822.90x = 523,270,954,324.70
  5. Step 5: Solve for x
    x = 523,270,954,324.70/805,822.90
  6. Step 6: Final answer
    x = 649,362.23

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1.5x scale

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.