Home / 878,562.40-1,315,219.20-523,393.60

Finding the Fourth Proportional to 878,562.40, 1,315,219.20 and 523,393.60

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Solution

The fourth proportional to 878,562.40, 1,315,219.20 and 523,393.60 is: 783,526.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,562.40 : 1,315,219.20 = 523,393.60 : x
  2. Step 2: Convert to fraction form
    878,562.40/1,315,219.20 = 523,393.60/x
  3. Step 3: Cross multiply
    878,562.40x = 1,315,219.20 × 523,393.60
  4. Step 4: Simplify right side
    878,562.40x = 688,377,311,877.12
  5. Step 5: Solve for x
    x = 688,377,311,877.12/878,562.40
  6. Step 6: Final answer
    x = 783,526.94

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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.