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Finding the Fourth Proportional to 539,904.80, 808,690.80 and 446,592.80

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Solution

The fourth proportional to 539,904.80, 808,690.80 and 446,592.80 is: 668,924.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,904.80 : 808,690.80 = 446,592.80 : x
  2. Step 2: Convert to fraction form
    539,904.80/808,690.80 = 446,592.80/x
  3. Step 3: Cross multiply
    539,904.80x = 808,690.80 × 446,592.80
  4. Step 4: Simplify right side
    539,904.80x = 361,155,488,706.24
  5. Step 5: Solve for x
    x = 361,155,488,706.24/539,904.80
  6. Step 6: Final answer
    x = 668,924.39

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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.