Home / 1,078,482.69-1,488,845.43-670,715.90

Finding the Fourth Proportional to 1,078,482.69, 1,488,845.43 and 670,715.90

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Solution

The fourth proportional to 1,078,482.69, 1,488,845.43 and 670,715.90 is: 925,923.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,482.69 : 1,488,845.43 = 670,715.90 : x
  2. Step 2: Convert to fraction form
    1,078,482.69/1,488,845.43 = 670,715.90/x
  3. Step 3: Cross multiply
    1,078,482.69x = 1,488,845.43 × 670,715.90
  4. Step 4: Simplify right side
    1,078,482.69x = 998,592,300,682.28
  5. Step 5: Solve for x
    x = 998,592,300,682.28/1,078,482.69
  6. Step 6: Final answer
    x = 925,923.35

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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.