Home / 761,964.78-1,142,947.08-256,483.32

Finding the Fourth Proportional to 761,964.78, 1,142,947.08 and 256,483.32

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Solution

The fourth proportional to 761,964.78, 1,142,947.08 and 256,483.32 is: 384,724.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,964.78 : 1,142,947.08 = 256,483.32 : x
  2. Step 2: Convert to fraction form
    761,964.78/1,142,947.08 = 256,483.32/x
  3. Step 3: Cross multiply
    761,964.78x = 1,142,947.08 × 256,483.32
  4. Step 4: Simplify right side
    761,964.78x = 293,146,861,662.71
  5. Step 5: Solve for x
    x = 293,146,861,662.71/761,964.78
  6. Step 6: Final answer
    x = 384,724.95

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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.