Home / 1,071,142.11-1,606,706.23-272,416.76

Finding the Fourth Proportional to 1,071,142.11, 1,606,706.23 and 272,416.76

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Solution

The fourth proportional to 1,071,142.11, 1,606,706.23 and 272,416.76 is: 408,623.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,071,142.11 : 1,606,706.23 = 272,416.76 : x
  2. Step 2: Convert to fraction form
    1,071,142.11/1,606,706.23 = 272,416.76/x
  3. Step 3: Cross multiply
    1,071,142.11x = 1,606,706.23 × 272,416.76
  4. Step 4: Simplify right side
    1,071,142.11x = 437,693,696,052.80
  5. Step 5: Solve for x
    x = 437,693,696,052.80/1,071,142.11
  6. Step 6: Final answer
    x = 408,623.37

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Double scale
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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.