Home / 526,788.36-726,922.05-309,040.92

Finding the Fourth Proportional to 526,788.36, 726,922.05 and 309,040.92

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Solution

The fourth proportional to 526,788.36, 726,922.05 and 309,040.92 is: 426,449.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,788.36 : 726,922.05 = 309,040.92 : x
  2. Step 2: Convert to fraction form
    526,788.36/726,922.05 = 309,040.92/x
  3. Step 3: Cross multiply
    526,788.36x = 726,922.05 × 309,040.92
  4. Step 4: Simplify right side
    526,788.36x = 224,648,657,941.38
  5. Step 5: Solve for x
    x = 224,648,657,941.38/526,788.36
  6. Step 6: Final answer
    x = 426,449.55

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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.