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Finding the Fourth Proportional to 674,225.72, 930,392.94 and 402,600.12

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Solution

The fourth proportional to 674,225.72, 930,392.94 and 402,600.12 is: 555,565.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,225.72 : 930,392.94 = 402,600.12 : x
  2. Step 2: Convert to fraction form
    674,225.72/930,392.94 = 402,600.12/x
  3. Step 3: Cross multiply
    674,225.72x = 930,392.94 × 402,600.12
  4. Step 4: Simplify right side
    674,225.72x = 374,576,309,291.15
  5. Step 5: Solve for x
    x = 374,576,309,291.15/674,225.72
  6. Step 6: Final answer
    x = 555,565.14

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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.