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Finding the Fourth Proportional to 480,379.10, 662,911.59 and 262,578

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Solution

The fourth proportional to 480,379.10, 662,911.59 and 262,578 is: 362,351.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,379.10 : 662,911.59 = 262,578 : x
  2. Step 2: Convert to fraction form
    480,379.10/662,911.59 = 262,578/x
  3. Step 3: Cross multiply
    480,379.10x = 662,911.59 × 262,578
  4. Step 4: Simplify right side
    480,379.10x = 174,065,999,479.02
  5. Step 5: Solve for x
    x = 174,065,999,479.02/480,379.10
  6. Step 6: Final answer
    x = 362,351.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.