Home / 668,566.80-1,001,489.40-415,069.20

Finding the Fourth Proportional to 668,566.80, 1,001,489.40 and 415,069.20

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Solution

The fourth proportional to 668,566.80, 1,001,489.40 and 415,069.20 is: 621,758.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,566.80 : 1,001,489.40 = 415,069.20 : x
  2. Step 2: Convert to fraction form
    668,566.80/1,001,489.40 = 415,069.20/x
  3. Step 3: Cross multiply
    668,566.80x = 1,001,489.40 × 415,069.20
  4. Step 4: Simplify right side
    668,566.80x = 415,687,404,066.48
  5. Step 5: Solve for x
    x = 415,687,404,066.48/668,566.80
  6. Step 6: Final answer
    x = 621,758.97

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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.