Home / 977,115.80-1,465,673.70-879,138.20

Finding the Fourth Proportional to 977,115.80, 1,465,673.70 and 879,138.20

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Solution

The fourth proportional to 977,115.80, 1,465,673.70 and 879,138.20 is: 1,318,707.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,115.80 : 1,465,673.70 = 879,138.20 : x
  2. Step 2: Convert to fraction form
    977,115.80/1,465,673.70 = 879,138.20/x
  3. Step 3: Cross multiply
    977,115.80x = 1,465,673.70 × 879,138.20
  4. Step 4: Simplify right side
    977,115.80x = 1,288,529,738,405.34
  5. Step 5: Solve for x
    x = 1,288,529,738,405.34/977,115.80
  6. Step 6: Final answer
    x = 1,318,707.30

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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.