Home / 725,177.72-1,000,746.42-402,888.18

Finding the Fourth Proportional to 725,177.72, 1,000,746.42 and 402,888.18

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Solution

The fourth proportional to 725,177.72, 1,000,746.42 and 402,888.18 is: 555,986.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,177.72 : 1,000,746.42 = 402,888.18 : x
  2. Step 2: Convert to fraction form
    725,177.72/1,000,746.42 = 402,888.18/x
  3. Step 3: Cross multiply
    725,177.72x = 1,000,746.42 × 402,888.18
  4. Step 4: Simplify right side
    725,177.72x = 403,188,903,795.32
  5. Step 5: Solve for x
    x = 403,188,903,795.32/725,177.72
  6. Step 6: Final answer
    x = 555,986.34

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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.