Home / 389,896.08-583,513.43-326,787.50

Finding the Fourth Proportional to 389,896.08, 583,513.43 and 326,787.50

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Solution

The fourth proportional to 389,896.08, 583,513.43 and 326,787.50 is: 489,065.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,896.08 : 583,513.43 = 326,787.50 : x
  2. Step 2: Convert to fraction form
    389,896.08/583,513.43 = 326,787.50/x
  3. Step 3: Cross multiply
    389,896.08x = 583,513.43 × 326,787.50
  4. Step 4: Simplify right side
    389,896.08x = 190,684,890,454.62
  5. Step 5: Solve for x
    x = 190,684,890,454.62/389,896.08
  6. Step 6: Final answer
    x = 489,065.93

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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.