Home / 774,005.78-1,068,138.47-429,863.92

Finding the Fourth Proportional to 774,005.78, 1,068,138.47 and 429,863.92

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Solution

The fourth proportional to 774,005.78, 1,068,138.47 and 429,863.92 is: 593,218.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,005.78 : 1,068,138.47 = 429,863.92 : x
  2. Step 2: Convert to fraction form
    774,005.78/1,068,138.47 = 429,863.92/x
  3. Step 3: Cross multiply
    774,005.78x = 1,068,138.47 × 429,863.92
  4. Step 4: Simplify right side
    774,005.78x = 459,154,188,221.32
  5. Step 5: Solve for x
    x = 459,154,188,221.32/774,005.78
  6. Step 6: Final answer
    x = 593,218.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.