Home / 722,252.81-996,707.96-399,962.51

Finding the Fourth Proportional to 722,252.81, 996,707.96 and 399,962.51

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Solution

The fourth proportional to 722,252.81, 996,707.96 and 399,962.51 is: 551,947.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,252.81 : 996,707.96 = 399,962.51 : x
  2. Step 2: Convert to fraction form
    722,252.81/996,707.96 = 399,962.51/x
  3. Step 3: Cross multiply
    722,252.81x = 996,707.96 × 399,962.51
  4. Step 4: Simplify right side
    722,252.81x = 398,645,810,435.23
  5. Step 5: Solve for x
    x = 398,645,810,435.23/722,252.81
  6. Step 6: Final answer
    x = 551,947.75

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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.