Home / 658,021.47-907,914.01-382,215.44

Finding the Fourth Proportional to 658,021.47, 907,914.01 and 382,215.44

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Solution

The fourth proportional to 658,021.47, 907,914.01 and 382,215.44 is: 527,366.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,021.47 : 907,914.01 = 382,215.44 : x
  2. Step 2: Convert to fraction form
    658,021.47/907,914.01 = 382,215.44/x
  3. Step 3: Cross multiply
    658,021.47x = 907,914.01 × 382,215.44
  4. Step 4: Simplify right side
    658,021.47x = 347,018,747,319.21
  5. Step 5: Solve for x
    x = 347,018,747,319.21/658,021.47
  6. Step 6: Final answer
    x = 527,366.91

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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.