Home / 821,981.13-1,232,971.91-537,910.89

Finding the Fourth Proportional to 821,981.13, 1,232,971.91 and 537,910.89

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Solution

The fourth proportional to 821,981.13, 1,232,971.91 and 537,910.89 is: 806,866.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,981.13 : 1,232,971.91 = 537,910.89 : x
  2. Step 2: Convert to fraction form
    821,981.13/1,232,971.91 = 537,910.89/x
  3. Step 3: Cross multiply
    821,981.13x = 1,232,971.91 × 537,910.89
  4. Step 4: Simplify right side
    821,981.13x = 663,229,014,763.55
  5. Step 5: Solve for x
    x = 663,229,014,763.55/821,981.13
  6. Step 6: Final answer
    x = 806,866.47

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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.