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Finding the Fourth Proportional to 578,188.77, 867,460.61 and 258,609.52

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Solution

The fourth proportional to 578,188.77, 867,460.61 and 258,609.52 is: 387,993.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,188.77 : 867,460.61 = 258,609.52 : x
  2. Step 2: Convert to fraction form
    578,188.77/867,460.61 = 258,609.52/x
  3. Step 3: Cross multiply
    578,188.77x = 867,460.61 × 258,609.52
  4. Step 4: Simplify right side
    578,188.77x = 224,333,573,701.86
  5. Step 5: Solve for x
    x = 224,333,573,701.86/578,188.77
  6. Step 6: Final answer
    x = 387,993.66

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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.