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Finding the Fourth Proportional to 586,215.20, 879,378.48 and 159,756.32

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Solution

The fourth proportional to 586,215.20, 879,378.48 and 159,756.32 is: 239,649.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,215.20 : 879,378.48 = 159,756.32 : x
  2. Step 2: Convert to fraction form
    586,215.20/879,378.48 = 159,756.32/x
  3. Step 3: Cross multiply
    586,215.20x = 879,378.48 × 159,756.32
  4. Step 4: Simplify right side
    586,215.20x = 140,486,269,851.99
  5. Step 5: Solve for x
    x = 140,486,269,851.99/586,215.20
  6. Step 6: Final answer
    x = 239,649.65

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.