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Finding the Fourth Proportional to 605,328, 907,656.48 and 280,762.08

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Solution

The fourth proportional to 605,328, 907,656.48 and 280,762.08 is: 420,987.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,328 : 907,656.48 = 280,762.08 : x
  2. Step 2: Convert to fraction form
    605,328/907,656.48 = 280,762.08/x
  3. Step 3: Cross multiply
    605,328x = 907,656.48 × 280,762.08
  4. Step 4: Simplify right side
    605,328x = 254,835,521,250.28
  5. Step 5: Solve for x
    x = 254,835,521,250.28/605,328
  6. Step 6: Final answer
    x = 420,987.50

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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.