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Finding the Fourth Proportional to 617,423.80, 926,135.70 and 262,449.40

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Solution

The fourth proportional to 617,423.80, 926,135.70 and 262,449.40 is: 393,674.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,423.80 : 926,135.70 = 262,449.40 : x
  2. Step 2: Convert to fraction form
    617,423.80/926,135.70 = 262,449.40/x
  3. Step 3: Cross multiply
    617,423.80x = 926,135.70 × 262,449.40
  4. Step 4: Simplify right side
    617,423.80x = 243,063,758,783.58
  5. Step 5: Solve for x
    x = 243,063,758,783.58/617,423.80
  6. Step 6: Final answer
    x = 393,674.10

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Similar ratio
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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.