Home / 762,398.37-1,143,601.47-256,963.71

Finding the Fourth Proportional to 762,398.37, 1,143,601.47 and 256,963.71

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Solution

The fourth proportional to 762,398.37, 1,143,601.47 and 256,963.71 is: 385,446.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,398.37 : 1,143,601.47 = 256,963.71 : x
  2. Step 2: Convert to fraction form
    762,398.37/1,143,601.47 = 256,963.71/x
  3. Step 3: Cross multiply
    762,398.37x = 1,143,601.47 × 256,963.71
  4. Step 4: Simplify right side
    762,398.37x = 293,864,076,492.65
  5. Step 5: Solve for x
    x = 293,864,076,492.65/762,398.37
  6. Step 6: Final answer
    x = 385,446.88

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1.5x scale

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.