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Finding the Fourth Proportional to 661,639.70, 992,459.55 and 600,622.40

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Solution

The fourth proportional to 661,639.70, 992,459.55 and 600,622.40 is: 900,933.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,639.70 : 992,459.55 = 600,622.40 : x
  2. Step 2: Convert to fraction form
    661,639.70/992,459.55 = 600,622.40/x
  3. Step 3: Cross multiply
    661,639.70x = 992,459.55 × 600,622.40
  4. Step 4: Simplify right side
    661,639.70x = 596,093,436,823.92
  5. Step 5: Solve for x
    x = 596,093,436,823.92/661,639.70
  6. Step 6: Final answer
    x = 900,933.60

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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.