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Finding the Fourth Proportional to 586,378.88, 879,583.44 and 159,918.20

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Solution

The fourth proportional to 586,378.88, 879,583.44 and 159,918.20 is: 239,881.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,378.88 : 879,583.44 = 159,918.20 : x
  2. Step 2: Convert to fraction form
    586,378.88/879,583.44 = 159,918.20/x
  3. Step 3: Cross multiply
    586,378.88x = 879,583.44 × 159,918.20
  4. Step 4: Simplify right side
    586,378.88x = 140,661,400,474.61
  5. Step 5: Solve for x
    x = 140,661,400,474.61/586,378.88
  6. Step 6: Final answer
    x = 239,881.42

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1.5x scale

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.