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Finding the Fourth Proportional to 571,348.63, 788,456.05 and 313,220.88

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Solution

The fourth proportional to 571,348.63, 788,456.05 and 313,220.88 is: 432,242.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,348.63 : 788,456.05 = 313,220.88 : x
  2. Step 2: Convert to fraction form
    571,348.63/788,456.05 = 313,220.88/x
  3. Step 3: Cross multiply
    571,348.63x = 788,456.05 × 313,220.88
  4. Step 4: Simplify right side
    571,348.63x = 246,960,897,039.27
  5. Step 5: Solve for x
    x = 246,960,897,039.27/571,348.63
  6. Step 6: Final answer
    x = 432,242.04

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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.