Home / 784,990.20-1,177,485.30-724,337.40

Finding the Fourth Proportional to 784,990.20, 1,177,485.30 and 724,337.40

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Solution

The fourth proportional to 784,990.20, 1,177,485.30 and 724,337.40 is: 1,086,506.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,990.20 : 1,177,485.30 = 724,337.40 : x
  2. Step 2: Convert to fraction form
    784,990.20/1,177,485.30 = 724,337.40/x
  3. Step 3: Cross multiply
    784,990.20x = 1,177,485.30 × 724,337.40
  4. Step 4: Simplify right side
    784,990.20x = 852,896,640,740.22
  5. Step 5: Solve for x
    x = 852,896,640,740.22/784,990.20
  6. Step 6: Final answer
    x = 1,086,506.10

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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.