Home / 1,121,747.10-1,682,292.60-402,005.40

Finding the Fourth Proportional to 1,121,747.10, 1,682,292.60 and 402,005.40

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Solution

The fourth proportional to 1,121,747.10, 1,682,292.60 and 402,005.40 is: 602,890.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,747.10 : 1,682,292.60 = 402,005.40 : x
  2. Step 2: Convert to fraction form
    1,121,747.10/1,682,292.60 = 402,005.40/x
  3. Step 3: Cross multiply
    1,121,747.10x = 1,682,292.60 × 402,005.40
  4. Step 4: Simplify right side
    1,121,747.10x = 676,290,709,580.04
  5. Step 5: Solve for x
    x = 676,290,709,580.04/1,121,747.10
  6. Step 6: Final answer
    x = 602,890.54

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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.