Home / 515,026.89-710,724.38-285,585.08

Finding the Fourth Proportional to 515,026.89, 710,724.38 and 285,585.08

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Solution

The fourth proportional to 515,026.89, 710,724.38 and 285,585.08 is: 394,100.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,026.89 : 710,724.38 = 285,585.08 : x
  2. Step 2: Convert to fraction form
    515,026.89/710,724.38 = 285,585.08/x
  3. Step 3: Cross multiply
    515,026.89x = 710,724.38 × 285,585.08
  4. Step 4: Simplify right side
    515,026.89x = 202,972,273,938.70
  5. Step 5: Solve for x
    x = 202,972,273,938.70/515,026.89
  6. Step 6: Final answer
    x = 394,100.34

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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.