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Finding the Fourth Proportional to 459,991.76, 634,787.52 and 258,787.76

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Solution

The fourth proportional to 459,991.76, 634,787.52 and 258,787.76 is: 357,126.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,991.76 : 634,787.52 = 258,787.76 : x
  2. Step 2: Convert to fraction form
    459,991.76/634,787.52 = 258,787.76/x
  3. Step 3: Cross multiply
    459,991.76x = 634,787.52 × 258,787.76
  4. Step 4: Simplify right side
    459,991.76x = 164,275,240,376.76
  5. Step 5: Solve for x
    x = 164,275,240,376.76/459,991.76
  6. Step 6: Final answer
    x = 357,126.48

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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.