Home / 1,678,247.68-2,316,262.60-990,090.30

Finding the Fourth Proportional to 1,678,247.68, 2,316,262.60 and 990,090.30

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Solution

The fourth proportional to 1,678,247.68, 2,316,262.60 and 990,090.30 is: 1,366,490.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,678,247.68 : 2,316,262.60 = 990,090.30 : x
  2. Step 2: Convert to fraction form
    1,678,247.68/2,316,262.60 = 990,090.30/x
  3. Step 3: Cross multiply
    1,678,247.68x = 2,316,262.60 × 990,090.30
  4. Step 4: Simplify right side
    1,678,247.68x = 2,293,309,132,512.78
  5. Step 5: Solve for x
    x = 2,293,309,132,512.78/1,678,247.68
  6. Step 6: Final answer
    x = 1,366,490.27

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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.