Home / 867,991.39-1,300,746.38-488,114.73

Finding the Fourth Proportional to 867,991.39, 1,300,746.38 and 488,114.73

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Solution

The fourth proportional to 867,991.39, 1,300,746.38 and 488,114.73 is: 731,474.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,991.39 : 1,300,746.38 = 488,114.73 : x
  2. Step 2: Convert to fraction form
    867,991.39/1,300,746.38 = 488,114.73/x
  3. Step 3: Cross multiply
    867,991.39x = 1,300,746.38 × 488,114.73
  4. Step 4: Simplify right side
    867,991.39x = 634,913,468,072.18
  5. Step 5: Solve for x
    x = 634,913,468,072.18/867,991.39
  6. Step 6: Final answer
    x = 731,474.38

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1.5x scale

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.