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Finding the Fourth Proportional to 622,249.18, 858,638.14 and 350,312.13

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Solution

The fourth proportional to 622,249.18, 858,638.14 and 350,312.13 is: 483,393.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,249.18 : 858,638.14 = 350,312.13 : x
  2. Step 2: Convert to fraction form
    622,249.18/858,638.14 = 350,312.13/x
  3. Step 3: Cross multiply
    622,249.18x = 858,638.14 × 350,312.13
  4. Step 4: Simplify right side
    622,249.18x = 300,791,354,846.86
  5. Step 5: Solve for x
    x = 300,791,354,846.86/622,249.18
  6. Step 6: Final answer
    x = 483,393.74

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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.