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Finding the Fourth Proportional to 539,876.80, 808,648.80 and 446,564.80

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Solution

The fourth proportional to 539,876.80, 808,648.80 and 446,564.80 is: 668,882.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,876.80 : 808,648.80 = 446,564.80 : x
  2. Step 2: Convert to fraction form
    539,876.80/808,648.80 = 446,564.80/x
  3. Step 3: Cross multiply
    539,876.80x = 808,648.80 × 446,564.80
  4. Step 4: Simplify right side
    539,876.80x = 361,114,089,642.24
  5. Step 5: Solve for x
    x = 361,114,089,642.24/539,876.80
  6. Step 6: Final answer
    x = 668,882.40

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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.