Home / 632,437.36-872,623.68-387,473.86

Finding the Fourth Proportional to 632,437.36, 872,623.68 and 387,473.86

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Solution

The fourth proportional to 632,437.36, 872,623.68 and 387,473.86 is: 534,628.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,437.36 : 872,623.68 = 387,473.86 : x
  2. Step 2: Convert to fraction form
    632,437.36/872,623.68 = 387,473.86/x
  3. Step 3: Cross multiply
    632,437.36x = 872,623.68 × 387,473.86
  4. Step 4: Simplify right side
    632,437.36x = 338,118,865,617.01
  5. Step 5: Solve for x
    x = 338,118,865,617.01/632,437.36
  6. Step 6: Final answer
    x = 534,628.23

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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.