Home / 879,221.80-1,317,795.90-657,346.60

Finding the Fourth Proportional to 879,221.80, 1,317,795.90 and 657,346.60

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Solution

The fourth proportional to 879,221.80, 1,317,795.90 and 657,346.60 is: 985,244.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,221.80 : 1,317,795.90 = 657,346.60 : x
  2. Step 2: Convert to fraction form
    879,221.80/1,317,795.90 = 657,346.60/x
  3. Step 3: Cross multiply
    879,221.80x = 1,317,795.90 × 657,346.60
  4. Step 4: Simplify right side
    879,221.80x = 866,248,654,358.94
  5. Step 5: Solve for x
    x = 866,248,654,358.94/879,221.80
  6. Step 6: Final answer
    x = 985,244.74

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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.