Home / 725,425.64-1,001,007.89-419,455.72

Finding the Fourth Proportional to 725,425.64, 1,001,007.89 and 419,455.72

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Solution

The fourth proportional to 725,425.64, 1,001,007.89 and 419,455.72 is: 578,802.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,425.64 : 1,001,007.89 = 419,455.72 : x
  2. Step 2: Convert to fraction form
    725,425.64/1,001,007.89 = 419,455.72/x
  3. Step 3: Cross multiply
    725,425.64x = 1,001,007.89 × 419,455.72
  4. Step 4: Simplify right side
    725,425.64x = 419,878,480,321.90
  5. Step 5: Solve for x
    x = 419,878,480,321.90/725,425.64
  6. Step 6: Final answer
    x = 578,802.92

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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.