Home / 519,246.10-778,811.55-145,306.90

Finding the Fourth Proportional to 519,246.10, 778,811.55 and 145,306.90

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Solution

The fourth proportional to 519,246.10, 778,811.55 and 145,306.90 is: 217,944.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,246.10 : 778,811.55 = 145,306.90 : x
  2. Step 2: Convert to fraction form
    519,246.10/778,811.55 = 145,306.90/x
  3. Step 3: Cross multiply
    519,246.10x = 778,811.55 × 145,306.90
  4. Step 4: Simplify right side
    519,246.10x = 113,166,692,014.70
  5. Step 5: Solve for x
    x = 113,166,692,014.70/519,246.10
  6. Step 6: Final answer
    x = 217,944.23

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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.