Home / 879,220.80-1,317,794.40-657,345.60

Finding the Fourth Proportional to 879,220.80, 1,317,794.40 and 657,345.60

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Solution

The fourth proportional to 879,220.80, 1,317,794.40 and 657,345.60 is: 985,243.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,220.80 : 1,317,794.40 = 657,345.60 : x
  2. Step 2: Convert to fraction form
    879,220.80/1,317,794.40 = 657,345.60/x
  3. Step 3: Cross multiply
    879,220.80x = 1,317,794.40 × 657,345.60
  4. Step 4: Simplify right side
    879,220.80x = 866,246,350,544.64
  5. Step 5: Solve for x
    x = 866,246,350,544.64/879,220.80
  6. Step 6: Final answer
    x = 985,243.24

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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.