Home / 774,628.40-1,159,787.54-394,730.12

Finding the Fourth Proportional to 774,628.40, 1,159,787.54 and 394,730.12

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Solution

The fourth proportional to 774,628.40, 1,159,787.54 and 394,730.12 is: 590,997.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,628.40 : 1,159,787.54 = 394,730.12 : x
  2. Step 2: Convert to fraction form
    774,628.40/1,159,787.54 = 394,730.12/x
  3. Step 3: Cross multiply
    774,628.40x = 1,159,787.54 × 394,730.12
  4. Step 4: Simplify right side
    774,628.40x = 457,803,074,838.71
  5. Step 5: Solve for x
    x = 457,803,074,838.71/774,628.40
  6. Step 6: Final answer
    x = 590,997.02

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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.