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Finding the Fourth Proportional to 578,365.68, 867,589.06 and 178,953.86

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Solution

The fourth proportional to 578,365.68, 867,589.06 and 178,953.86 is: 268,443.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,365.68 : 867,589.06 = 178,953.86 : x
  2. Step 2: Convert to fraction form
    578,365.68/867,589.06 = 178,953.86/x
  3. Step 3: Cross multiply
    578,365.68x = 867,589.06 × 178,953.86
  4. Step 4: Simplify right side
    578,365.68x = 155,258,411,180.77
  5. Step 5: Solve for x
    x = 155,258,411,180.77/578,365.68
  6. Step 6: Final answer
    x = 268,443.33

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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.