Home / 1,055,521.40-1,580,301.30-821,593.40

Finding the Fourth Proportional to 1,055,521.40, 1,580,301.30 and 821,593.40

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Solution

The fourth proportional to 1,055,521.40, 1,580,301.30 and 821,593.40 is: 1,230,069.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,055,521.40 : 1,580,301.30 = 821,593.40 : x
  2. Step 2: Convert to fraction form
    1,055,521.40/1,580,301.30 = 821,593.40/x
  3. Step 3: Cross multiply
    1,055,521.40x = 1,580,301.30 × 821,593.40
  4. Step 4: Simplify right side
    1,055,521.40x = 1,298,365,118,091.42
  5. Step 5: Solve for x
    x = 1,298,365,118,091.42/1,055,521.40
  6. Step 6: Final answer
    x = 1,230,069.91

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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.