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Finding the Fourth Proportional to 671,024.07, 925,708.08 and 398,937.57

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Solution

The fourth proportional to 671,024.07, 925,708.08 and 398,937.57 is: 550,352.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,024.07 : 925,708.08 = 398,937.57 : x
  2. Step 2: Convert to fraction form
    671,024.07/925,708.08 = 398,937.57/x
  3. Step 3: Cross multiply
    671,024.07x = 925,708.08 × 398,937.57
  4. Step 4: Simplify right side
    671,024.07x = 369,299,731,964.57
  5. Step 5: Solve for x
    x = 369,299,731,964.57/671,024.07
  6. Step 6: Final answer
    x = 550,352.44

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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.