Home / 1,105,064.32-1,524,845.28-621,613.12

Finding the Fourth Proportional to 1,105,064.32, 1,524,845.28 and 621,613.12

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Solution

The fourth proportional to 1,105,064.32, 1,524,845.28 and 621,613.12 is: 857,745.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,105,064.32 : 1,524,845.28 = 621,613.12 : x
  2. Step 2: Convert to fraction form
    1,105,064.32/1,524,845.28 = 621,613.12/x
  3. Step 3: Cross multiply
    1,105,064.32x = 1,524,845.28 × 621,613.12
  4. Step 4: Simplify right side
    1,105,064.32x = 947,863,832,018.07
  5. Step 5: Solve for x
    x = 947,863,832,018.07/1,105,064.32
  6. Step 6: Final answer
    x = 857,745.40

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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.