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Finding the Fourth Proportional to 867,994.45, 1,300,750.99 and 488,117.81

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Solution

The fourth proportional to 867,994.45, 1,300,750.99 and 488,117.81 is: 731,479.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,994.45 : 1,300,750.99 = 488,117.81 : x
  2. Step 2: Convert to fraction form
    867,994.45/1,300,750.99 = 488,117.81/x
  3. Step 3: Cross multiply
    867,994.45x = 1,300,750.99 × 488,117.81
  4. Step 4: Simplify right side
    867,994.45x = 634,919,726,625.72
  5. Step 5: Solve for x
    x = 634,919,726,625.72/867,994.45
  6. Step 6: Final answer
    x = 731,479.02

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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.