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Finding the Fourth Proportional to 586,275.75, 879,189.44 and 319,893.89

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Solution

The fourth proportional to 586,275.75, 879,189.44 and 319,893.89 is: 479,718.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,275.75 : 879,189.44 = 319,893.89 : x
  2. Step 2: Convert to fraction form
    586,275.75/879,189.44 = 319,893.89/x
  3. Step 3: Cross multiply
    586,275.75x = 879,189.44 × 319,893.89
  4. Step 4: Simplify right side
    586,275.75x = 281,247,324,013.11
  5. Step 5: Solve for x
    x = 281,247,324,013.11/586,275.75
  6. Step 6: Final answer
    x = 479,718.50

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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.