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Finding the Fourth Proportional to 587,852.25, 811,242.59 and 319,580.25

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Solution

The fourth proportional to 587,852.25, 811,242.59 and 319,580.25 is: 441,024.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,852.25 : 811,242.59 = 319,580.25 : x
  2. Step 2: Convert to fraction form
    587,852.25/811,242.59 = 319,580.25/x
  3. Step 3: Cross multiply
    587,852.25x = 811,242.59 × 319,580.25
  4. Step 4: Simplify right side
    587,852.25x = 259,257,108,124.95
  5. Step 5: Solve for x
    x = 259,257,108,124.95/587,852.25
  6. Step 6: Final answer
    x = 441,024.27

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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.