Home / 632,439.10-872,786.78-345,952.63

Finding the Fourth Proportional to 632,439.10, 872,786.78 and 345,952.63

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Solution

The fourth proportional to 632,439.10, 872,786.78 and 345,952.63 is: 477,426.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,439.10 : 872,786.78 = 345,952.63 : x
  2. Step 2: Convert to fraction form
    632,439.10/872,786.78 = 345,952.63/x
  3. Step 3: Cross multiply
    632,439.10x = 872,786.78 × 345,952.63
  4. Step 4: Simplify right side
    632,439.10x = 301,942,881,970.23
  5. Step 5: Solve for x
    x = 301,942,881,970.23/632,439.10
  6. Step 6: Final answer
    x = 477,426.02

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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.