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Finding the Fourth Proportional to 626,521.62, 864,608.13 and 340,045.14

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Solution

The fourth proportional to 626,521.62, 864,608.13 and 340,045.14 is: 469,266.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,521.62 : 864,608.13 = 340,045.14 : x
  2. Step 2: Convert to fraction form
    626,521.62/864,608.13 = 340,045.14/x
  3. Step 3: Cross multiply
    626,521.62x = 864,608.13 × 340,045.14
  4. Step 4: Simplify right side
    626,521.62x = 294,005,792,610.99
  5. Step 5: Solve for x
    x = 294,005,792,610.99/626,521.62
  6. Step 6: Final answer
    x = 469,266.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.