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

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Solution

The fourth proportional to 918,000.60, 1,377,000.90 and 918,000.60 is: 1,377,000.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,000.60 : 1,377,000.90 = 918,000.60 : x
  2. Step 2: Convert to fraction form
    918,000.60/1,377,000.90 = 918,000.60/x
  3. Step 3: Cross multiply
    918,000.60x = 1,377,000.90 × 918,000.60
  4. Step 4: Simplify right side
    918,000.60x = 1,264,087,652,400.54
  5. Step 5: Solve for x
    x = 1,264,087,652,400.54/918,000.60
  6. Step 6: Final answer
    x = 1,377,000.90

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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.