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Finding the Fourth Proportional to 615,024.90, 922,537.35 and 259,920.90

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Solution

The fourth proportional to 615,024.90, 922,537.35 and 259,920.90 is: 389,881.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,024.90 : 922,537.35 = 259,920.90 : x
  2. Step 2: Convert to fraction form
    615,024.90/922,537.35 = 259,920.90/x
  3. Step 3: Cross multiply
    615,024.90x = 922,537.35 × 259,920.90
  4. Step 4: Simplify right side
    615,024.90x = 239,786,738,295.62
  5. Step 5: Solve for x
    x = 239,786,738,295.62/615,024.90
  6. Step 6: Final answer
    x = 389,881.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.