Home / 1,442,421.39-1,990,407.91-797,827.71

Finding the Fourth Proportional to 1,442,421.39, 1,990,407.91 and 797,827.71

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Solution

The fourth proportional to 1,442,421.39, 1,990,407.91 and 797,827.71 is: 1,100,928.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,442,421.39 : 1,990,407.91 = 797,827.71 : x
  2. Step 2: Convert to fraction form
    1,442,421.39/1,990,407.91 = 797,827.71/x
  3. Step 3: Cross multiply
    1,442,421.39x = 1,990,407.91 × 797,827.71
  4. Step 4: Simplify right side
    1,442,421.39x = 1,588,002,584,801.19
  5. Step 5: Solve for x
    x = 1,588,002,584,801.19/1,442,421.39
  6. Step 6: Final answer
    x = 1,100,928.34

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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.