Home / 1,328,541.40-1,992,812.10-1,316,099.80

Finding the Fourth Proportional to 1,328,541.40, 1,992,812.10 and 1,316,099.80

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Solution

The fourth proportional to 1,328,541.40, 1,992,812.10 and 1,316,099.80 is: 1,974,149.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,541.40 : 1,992,812.10 = 1,316,099.80 : x
  2. Step 2: Convert to fraction form
    1,328,541.40/1,992,812.10 = 1,316,099.80/x
  3. Step 3: Cross multiply
    1,328,541.40x = 1,992,812.10 × 1,316,099.80
  4. Step 4: Simplify right side
    1,328,541.40x = 2,622,739,606,247.58
  5. Step 5: Solve for x
    x = 2,622,739,606,247.58/1,328,541.40
  6. Step 6: Final answer
    x = 1,974,149.70

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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.