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Finding the Fourth Proportional to 521,746.86, 782,435.70 and 248,160.84

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Solution

The fourth proportional to 521,746.86, 782,435.70 and 248,160.84 is: 372,153.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,746.86 : 782,435.70 = 248,160.84 : x
  2. Step 2: Convert to fraction form
    521,746.86/782,435.70 = 248,160.84/x
  3. Step 3: Cross multiply
    521,746.86x = 782,435.70 × 248,160.84
  4. Step 4: Simplify right side
    521,746.86x = 194,169,900,557.99
  5. Step 5: Solve for x
    x = 194,169,900,557.99/521,746.86
  6. Step 6: Final answer
    x = 372,153.46

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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.