Home / 775,981.11-1,163,632.28-391,493.35

Finding the Fourth Proportional to 775,981.11, 1,163,632.28 and 391,493.35

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Solution

The fourth proportional to 775,981.11, 1,163,632.28 and 391,493.35 is: 587,068.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,981.11 : 1,163,632.28 = 391,493.35 : x
  2. Step 2: Convert to fraction form
    775,981.11/1,163,632.28 = 391,493.35/x
  3. Step 3: Cross multiply
    775,981.11x = 1,163,632.28 × 391,493.35
  4. Step 4: Simplify right side
    775,981.11x = 455,554,299,465.34
  5. Step 5: Solve for x
    x = 455,554,299,465.34/775,981.11
  6. Step 6: Final answer
    x = 587,068.80

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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.