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Finding the Fourth Proportional to 566,911.98, 782,339.62 and 308,788.13

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Solution

The fourth proportional to 566,911.98, 782,339.62 and 308,788.13 is: 426,128.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,911.98 : 782,339.62 = 308,788.13 : x
  2. Step 2: Convert to fraction form
    566,911.98/782,339.62 = 308,788.13/x
  3. Step 3: Cross multiply
    566,911.98x = 782,339.62 × 308,788.13
  4. Step 4: Simplify right side
    566,911.98x = 241,577,189,468.59
  5. Step 5: Solve for x
    x = 241,577,189,468.59/566,911.98
  6. Step 6: Final answer
    x = 426,128.21

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1.5x scale

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.