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Finding the Fourth Proportional to 674,227.72, 930,395.70 and 402,602.12

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Solution

The fourth proportional to 674,227.72, 930,395.70 and 402,602.12 is: 555,567.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,227.72 : 930,395.70 = 402,602.12 : x
  2. Step 2: Convert to fraction form
    674,227.72/930,395.70 = 402,602.12/x
  3. Step 3: Cross multiply
    674,227.72x = 930,395.70 × 402,602.12
  4. Step 4: Simplify right side
    674,227.72x = 374,579,281,258.88
  5. Step 5: Solve for x
    x = 374,579,281,258.88/674,227.72
  6. Step 6: Final answer
    x = 555,567.90

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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.