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Finding the Fourth Proportional to 478,594.79, 660,452.28 and 260,805.36

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Solution

The fourth proportional to 478,594.79, 660,452.28 and 260,805.36 is: 359,906.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,594.79 : 660,452.28 = 260,805.36 : x
  2. Step 2: Convert to fraction form
    478,594.79/660,452.28 = 260,805.36/x
  3. Step 3: Cross multiply
    478,594.79x = 660,452.28 × 260,805.36
  4. Step 4: Simplify right side
    478,594.79x = 172,249,494,648.22
  5. Step 5: Solve for x
    x = 172,249,494,648.22/478,594.79
  6. Step 6: Final answer
    x = 359,906.75

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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.