Home / 683,268.80-1,025,000.40-209,883.20

Finding the Fourth Proportional to 683,268.80, 1,025,000.40 and 209,883.20

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Solution

The fourth proportional to 683,268.80, 1,025,000.40 and 209,883.20 is: 314,854.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,268.80 : 1,025,000.40 = 209,883.20 : x
  2. Step 2: Convert to fraction form
    683,268.80/1,025,000.40 = 209,883.20/x
  3. Step 3: Cross multiply
    683,268.80x = 1,025,000.40 × 209,883.20
  4. Step 4: Simplify right side
    683,268.80x = 215,130,363,953.28
  5. Step 5: Solve for x
    x = 215,130,363,953.28/683,268.80
  6. Step 6: Final answer
    x = 314,854.66

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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.