Home / 774,191.78-1,068,401.57-425,336.68

Finding the Fourth Proportional to 774,191.78, 1,068,401.57 and 425,336.68

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Solution

The fourth proportional to 774,191.78, 1,068,401.57 and 425,336.68 is: 586,973.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,191.78 : 1,068,401.57 = 425,336.68 : x
  2. Step 2: Convert to fraction form
    774,191.78/1,068,401.57 = 425,336.68/x
  3. Step 3: Cross multiply
    774,191.78x = 1,068,401.57 × 425,336.68
  4. Step 4: Simplify right side
    774,191.78x = 454,430,371,892.90
  5. Step 5: Solve for x
    x = 454,430,371,892.90/774,191.78
  6. Step 6: Final answer
    x = 586,973.91

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1.5x scale

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.