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Finding the Fourth Proportional to 675,638.40, 932,391.90 and 369,741.36

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Solution

The fourth proportional to 675,638.40, 932,391.90 and 369,741.36 is: 510,249.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,638.40 : 932,391.90 = 369,741.36 : x
  2. Step 2: Convert to fraction form
    675,638.40/932,391.90 = 369,741.36/x
  3. Step 3: Cross multiply
    675,638.40x = 932,391.90 × 369,741.36
  4. Step 4: Simplify right side
    675,638.40x = 344,743,849,158.98
  5. Step 5: Solve for x
    x = 344,743,849,158.98/675,638.40
  6. Step 6: Final answer
    x = 510,249.05

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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.