Home / 1,311,702.12-1,967,829.66-425,169

Finding the Fourth Proportional to 1,311,702.12, 1,967,829.66 and 425,169

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Solution

The fourth proportional to 1,311,702.12, 1,967,829.66 and 425,169 is: 637,843.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,702.12 : 1,967,829.66 = 425,169 : x
  2. Step 2: Convert to fraction form
    1,311,702.12/1,967,829.66 = 425,169/x
  3. Step 3: Cross multiply
    1,311,702.12x = 1,967,829.66 × 425,169
  4. Step 4: Simplify right side
    1,311,702.12x = 836,660,168,712.54
  5. Step 5: Solve for x
    x = 836,660,168,712.54/1,311,702.12
  6. Step 6: Final answer
    x = 637,843.12

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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.