Home / 1,078,720.76-1,488,078.71-670,667.86

Finding the Fourth Proportional to 1,078,720.76, 1,488,078.71 and 670,667.86

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Solution

The fourth proportional to 1,078,720.76, 1,488,078.71 and 670,667.86 is: 925,176.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,720.76 : 1,488,078.71 = 670,667.86 : x
  2. Step 2: Convert to fraction form
    1,078,720.76/1,488,078.71 = 670,667.86/x
  3. Step 3: Cross multiply
    1,078,720.76x = 1,488,078.71 × 670,667.86
  4. Step 4: Simplify right side
    1,078,720.76x = 998,006,563,947.26
  5. Step 5: Solve for x
    x = 998,006,563,947.26/1,078,720.76
  6. Step 6: Final answer
    x = 925,176.01

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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.