Home / 805,822.40-1,209,664.80-432,574.40

Finding the Fourth Proportional to 805,822.40, 1,209,664.80 and 432,574.40

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Solution

The fourth proportional to 805,822.40, 1,209,664.80 and 432,574.40 is: 649,361.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,822.40 : 1,209,664.80 = 432,574.40 : x
  2. Step 2: Convert to fraction form
    805,822.40/1,209,664.80 = 432,574.40/x
  3. Step 3: Cross multiply
    805,822.40x = 1,209,664.80 × 432,574.40
  4. Step 4: Simplify right side
    805,822.40x = 523,270,025,061.12
  5. Step 5: Solve for x
    x = 523,270,025,061.12/805,822.40
  6. Step 6: Final answer
    x = 649,361.48

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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.