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Finding the Fourth Proportional to 674,755.21, 931,162.12 and 368,832.83

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Solution

The fourth proportional to 674,755.21, 931,162.12 and 368,832.83 is: 508,989.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,755.21 : 931,162.12 = 368,832.83 : x
  2. Step 2: Convert to fraction form
    674,755.21/931,162.12 = 368,832.83/x
  3. Step 3: Cross multiply
    674,755.21x = 931,162.12 × 368,832.83
  4. Step 4: Simplify right side
    674,755.21x = 343,443,154,330.51
  5. Step 5: Solve for x
    x = 343,443,154,330.51/674,755.21
  6. Step 6: Final answer
    x = 508,989.26

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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.