Home / 918,000.60-1,377,000.90-851,645.40

Finding the Fourth Proportional to 918,000.60, 1,377,000.90 and 851,645.40

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Solution

The fourth proportional to 918,000.60, 1,377,000.90 and 851,645.40 is: 1,277,468.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,000.60 : 1,377,000.90 = 851,645.40 : x
  2. Step 2: Convert to fraction form
    918,000.60/1,377,000.90 = 851,645.40/x
  3. Step 3: Cross multiply
    918,000.60x = 1,377,000.90 × 851,645.40
  4. Step 4: Simplify right side
    918,000.60x = 1,172,716,482,280.86
  5. Step 5: Solve for x
    x = 1,172,716,482,280.86/918,000.60
  6. Step 6: Final answer
    x = 1,277,468.10

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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.