Home / 725,056.97-1,000,550.79-402,787.35

Finding the Fourth Proportional to 725,056.97, 1,000,550.79 and 402,787.35

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Solution

The fourth proportional to 725,056.97, 1,000,550.79 and 402,787.35 is: 555,831.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,056.97 : 1,000,550.79 = 402,787.35 : x
  2. Step 2: Convert to fraction form
    725,056.97/1,000,550.79 = 402,787.35/x
  3. Step 3: Cross multiply
    725,056.97x = 1,000,550.79 × 402,787.35
  4. Step 4: Simplify right side
    725,056.97x = 403,009,201,244.51
  5. Step 5: Solve for x
    x = 403,009,201,244.51/725,056.97
  6. Step 6: Final answer
    x = 555,831.09

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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.