Home / 879,255.40-1,318,883.10-774,279.40

Finding the Fourth Proportional to 879,255.40, 1,318,883.10 and 774,279.40

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Solution

The fourth proportional to 879,255.40, 1,318,883.10 and 774,279.40 is: 1,161,419.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,255.40 : 1,318,883.10 = 774,279.40 : x
  2. Step 2: Convert to fraction form
    879,255.40/1,318,883.10 = 774,279.40/x
  3. Step 3: Cross multiply
    879,255.40x = 1,318,883.10 × 774,279.40
  4. Step 4: Simplify right side
    879,255.40x = 1,021,184,015,338.14
  5. Step 5: Solve for x
    x = 1,021,184,015,338.14/879,255.40
  6. Step 6: Final answer
    x = 1,161,419.10

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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.