Home / 977,189.80-1,465,784.70-879,212.20

Finding the Fourth Proportional to 977,189.80, 1,465,784.70 and 879,212.20

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Solution

The fourth proportional to 977,189.80, 1,465,784.70 and 879,212.20 is: 1,318,818.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,189.80 : 1,465,784.70 = 879,212.20 : x
  2. Step 2: Convert to fraction form
    977,189.80/1,465,784.70 = 879,212.20/x
  3. Step 3: Cross multiply
    977,189.80x = 1,465,784.70 × 879,212.20
  4. Step 4: Simplify right side
    977,189.80x = 1,288,735,790,813.34
  5. Step 5: Solve for x
    x = 1,288,735,790,813.34/977,189.80
  6. Step 6: Final answer
    x = 1,318,818.30

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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.