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Finding the Fourth Proportional to 680,000.40, 1,020,000.60 and 236,768.40

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Solution

The fourth proportional to 680,000.40, 1,020,000.60 and 236,768.40 is: 355,152.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,000.40 : 1,020,000.60 = 236,768.40 : x
  2. Step 2: Convert to fraction form
    680,000.40/1,020,000.60 = 236,768.40/x
  3. Step 3: Cross multiply
    680,000.40x = 1,020,000.60 × 236,768.40
  4. Step 4: Simplify right side
    680,000.40x = 241,503,910,061.04
  5. Step 5: Solve for x
    x = 241,503,910,061.04/680,000.40
  6. Step 6: Final answer
    x = 355,152.60

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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.