Home / 948,803.60-1,423,205.40-871,821.20

Finding the Fourth Proportional to 948,803.60, 1,423,205.40 and 871,821.20

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Solution

The fourth proportional to 948,803.60, 1,423,205.40 and 871,821.20 is: 1,307,731.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    948,803.60 : 1,423,205.40 = 871,821.20 : x
  2. Step 2: Convert to fraction form
    948,803.60/1,423,205.40 = 871,821.20/x
  3. Step 3: Cross multiply
    948,803.60x = 1,423,205.40 × 871,821.20
  4. Step 4: Simplify right side
    948,803.60x = 1,240,780,639,674.48
  5. Step 5: Solve for x
    x = 1,240,780,639,674.48/948,803.60
  6. Step 6: Final answer
    x = 1,307,731.80

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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.