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Finding the Fourth Proportional to 560,464.72, 773,458.40 and 318,782.12

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Solution

The fourth proportional to 560,464.72, 773,458.40 and 318,782.12 is: 439,929.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,464.72 : 773,458.40 = 318,782.12 : x
  2. Step 2: Convert to fraction form
    560,464.72/773,458.40 = 318,782.12/x
  3. Step 3: Cross multiply
    560,464.72x = 773,458.40 × 318,782.12
  4. Step 4: Simplify right side
    560,464.72x = 246,564,705,413.47
  5. Step 5: Solve for x
    x = 246,564,705,413.47/560,464.72
  6. Step 6: Final answer
    x = 439,929.04

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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.