Home / 753,813.16-1,040,272.28-409,655.90

Finding the Fourth Proportional to 753,813.16, 1,040,272.28 and 409,655.90

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Solution

The fourth proportional to 753,813.16, 1,040,272.28 and 409,655.90 is: 565,330.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,813.16 : 1,040,272.28 = 409,655.90 : x
  2. Step 2: Convert to fraction form
    753,813.16/1,040,272.28 = 409,655.90/x
  3. Step 3: Cross multiply
    753,813.16x = 1,040,272.28 × 409,655.90
  4. Step 4: Simplify right side
    753,813.16x = 426,153,677,108.45
  5. Step 5: Solve for x
    x = 426,153,677,108.45/753,813.16
  6. Step 6: Final answer
    x = 565,330.64

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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.