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Finding the Fourth Proportional to 614,401.62, 921,464.16 and 220,417.62

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Solution

The fourth proportional to 614,401.62, 921,464.16 and 220,417.62 is: 330,576.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,401.62 : 921,464.16 = 220,417.62 : x
  2. Step 2: Convert to fraction form
    614,401.62/921,464.16 = 220,417.62/x
  3. Step 3: Cross multiply
    614,401.62x = 921,464.16 × 220,417.62
  4. Step 4: Simplify right side
    614,401.62x = 203,106,937,062.50
  5. Step 5: Solve for x
    x = 203,106,937,062.50/614,401.62
  6. Step 6: Final answer
    x = 330,576.83

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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.