Home / 2,798,176.90-4,197,265.35-905,109.70

Finding the Fourth Proportional to 2,798,176.90, 4,197,265.35 and 905,109.70

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Solution

The fourth proportional to 2,798,176.90, 4,197,265.35 and 905,109.70 is: 1,357,664.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,798,176.90 : 4,197,265.35 = 905,109.70 : x
  2. Step 2: Convert to fraction form
    2,798,176.90/4,197,265.35 = 905,109.70/x
  3. Step 3: Cross multiply
    2,798,176.90x = 4,197,265.35 × 905,109.70
  4. Step 4: Simplify right side
    2,798,176.90x = 3,798,985,581,758.89
  5. Step 5: Solve for x
    x = 3,798,985,581,758.89/2,798,176.90
  6. Step 6: Final answer
    x = 1,357,664.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.