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Finding the Fourth Proportional to 487,288.32, 730,783.49 and 171,671.41

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Solution

The fourth proportional to 487,288.32, 730,783.49 and 171,671.41 is: 257,454.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,288.32 : 730,783.49 = 171,671.41 : x
  2. Step 2: Convert to fraction form
    487,288.32/730,783.49 = 171,671.41/x
  3. Step 3: Cross multiply
    487,288.32x = 730,783.49 × 171,671.41
  4. Step 4: Simplify right side
    487,288.32x = 125,454,634,967.71
  5. Step 5: Solve for x
    x = 125,454,634,967.71/487,288.32
  6. Step 6: Final answer
    x = 257,454.63

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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.