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Finding the Fourth Proportional to 629,626.07, 868,907.42 and 357,740.06

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Solution

The fourth proportional to 629,626.07, 868,907.42 and 357,740.06 is: 493,694.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,626.07 : 868,907.42 = 357,740.06 : x
  2. Step 2: Convert to fraction form
    629,626.07/868,907.42 = 357,740.06/x
  3. Step 3: Cross multiply
    629,626.07x = 868,907.42 × 357,740.06
  4. Step 4: Simplify right side
    629,626.07x = 310,842,986,432.01
  5. Step 5: Solve for x
    x = 310,842,986,432.01/629,626.07
  6. Step 6: Final answer
    x = 493,694.60

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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.