Home / 1,490,975.01-2,057,491.51-911,168.15

Finding the Fourth Proportional to 1,490,975.01, 2,057,491.51 and 911,168.15

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Solution

The fourth proportional to 1,490,975.01, 2,057,491.51 and 911,168.15 is: 1,257,379.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490,975.01 : 2,057,491.51 = 911,168.15 : x
  2. Step 2: Convert to fraction form
    1,490,975.01/2,057,491.51 = 911,168.15/x
  3. Step 3: Cross multiply
    1,490,975.01x = 2,057,491.51 × 911,168.15
  4. Step 4: Simplify right side
    1,490,975.01x = 1,874,720,739,090.10
  5. Step 5: Solve for x
    x = 1,874,720,739,090.10/1,490,975.01
  6. Step 6: Final answer
    x = 1,257,379.05

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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.