Home / 918,016.80-1,377,025.20-899,354.40

Finding the Fourth Proportional to 918,016.80, 1,377,025.20 and 899,354.40

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Solution

The fourth proportional to 918,016.80, 1,377,025.20 and 899,354.40 is: 1,349,031.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,016.80 : 1,377,025.20 = 899,354.40 : x
  2. Step 2: Convert to fraction form
    918,016.80/1,377,025.20 = 899,354.40/x
  3. Step 3: Cross multiply
    918,016.80x = 1,377,025.20 × 899,354.40
  4. Step 4: Simplify right side
    918,016.80x = 1,238,433,672,530.88
  5. Step 5: Solve for x
    x = 1,238,433,672,530.88/918,016.80
  6. Step 6: Final answer
    x = 1,349,031.60

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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.