Home / 918,014.20-1,377,021.30-911,793.40

Finding the Fourth Proportional to 918,014.20, 1,377,021.30 and 911,793.40

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Solution

The fourth proportional to 918,014.20, 1,377,021.30 and 911,793.40 is: 1,367,690.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,014.20 : 1,377,021.30 = 911,793.40 : x
  2. Step 2: Convert to fraction form
    918,014.20/1,377,021.30 = 911,793.40/x
  3. Step 3: Cross multiply
    918,014.20x = 1,377,021.30 × 911,793.40
  4. Step 4: Simplify right side
    918,014.20x = 1,255,558,932,999.42
  5. Step 5: Solve for x
    x = 1,255,558,932,999.42/918,014.20
  6. Step 6: Final answer
    x = 1,367,690.10

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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.