Home / 786,368.40-1,177,997.40-730,381.20

Finding the Fourth Proportional to 786,368.40, 1,177,997.40 and 730,381.20

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Solution

The fourth proportional to 786,368.40, 1,177,997.40 and 730,381.20 is: 1,094,127.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,368.40 : 1,177,997.40 = 730,381.20 : x
  2. Step 2: Convert to fraction form
    786,368.40/1,177,997.40 = 730,381.20/x
  3. Step 3: Cross multiply
    786,368.40x = 1,177,997.40 × 730,381.20
  4. Step 4: Simplify right side
    786,368.40x = 860,387,154,608.88
  5. Step 5: Solve for x
    x = 860,387,154,608.88/786,368.40
  6. Step 6: Final answer
    x = 1,094,127.33

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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.