Home / 482,811.20-724,216.80-315,694.40

Finding the Fourth Proportional to 482,811.20, 724,216.80 and 315,694.40

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Solution

The fourth proportional to 482,811.20, 724,216.80 and 315,694.40 is: 473,541.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,811.20 : 724,216.80 = 315,694.40 : x
  2. Step 2: Convert to fraction form
    482,811.20/724,216.80 = 315,694.40/x
  3. Step 3: Cross multiply
    482,811.20x = 724,216.80 × 315,694.40
  4. Step 4: Simplify right side
    482,811.20x = 228,631,188,145.92
  5. Step 5: Solve for x
    x = 228,631,188,145.92/482,811.20
  6. Step 6: Final answer
    x = 473,541.60

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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.