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Finding the Fourth Proportional to 518,580.20, 776,948.70 and 444,852.20

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Solution

The fourth proportional to 518,580.20, 776,948.70 and 444,852.20 is: 666,487.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,580.20 : 776,948.70 = 444,852.20 : x
  2. Step 2: Convert to fraction form
    518,580.20/776,948.70 = 444,852.20/x
  3. Step 3: Cross multiply
    518,580.20x = 776,948.70 × 444,852.20
  4. Step 4: Simplify right side
    518,580.20x = 345,627,338,482.14
  5. Step 5: Solve for x
    x = 345,627,338,482.14/518,580.20
  6. Step 6: Final answer
    x = 666,487.73

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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.