Home / 1,435,001.68-1,980,229.26-790,408

Finding the Fourth Proportional to 1,435,001.68, 1,980,229.26 and 790,408

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Solution

The fourth proportional to 1,435,001.68, 1,980,229.26 and 790,408 is: 1,090,722.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,435,001.68 : 1,980,229.26 = 790,408 : x
  2. Step 2: Convert to fraction form
    1,435,001.68/1,980,229.26 = 790,408/x
  3. Step 3: Cross multiply
    1,435,001.68x = 1,980,229.26 × 790,408
  4. Step 4: Simplify right side
    1,435,001.68x = 1,565,189,048,938.08
  5. Step 5: Solve for x
    x = 1,565,189,048,938.08/1,435,001.68
  6. Step 6: Final answer
    x = 1,090,722.80

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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.