Home / 1,188,000.10-1,778,500.95-1,118,793.70

Finding the Fourth Proportional to 1,188,000.10, 1,778,500.95 and 1,118,793.70

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Solution

The fourth proportional to 1,188,000.10, 1,778,500.95 and 1,118,793.70 is: 1,674,895.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,000.10 : 1,778,500.95 = 1,118,793.70 : x
  2. Step 2: Convert to fraction form
    1,188,000.10/1,778,500.95 = 1,118,793.70/x
  3. Step 3: Cross multiply
    1,188,000.10x = 1,778,500.95 × 1,118,793.70
  4. Step 4: Simplify right side
    1,188,000.10x = 1,989,775,658,304.02
  5. Step 5: Solve for x
    x = 1,989,775,658,304.02/1,188,000.10
  6. Step 6: Final answer
    x = 1,674,895.19

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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.