Home / 727,043.26-1,002,666.48-455,135.90

Finding the Fourth Proportional to 727,043.26, 1,002,666.48 and 455,135.90

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Solution

The fourth proportional to 727,043.26, 1,002,666.48 and 455,135.90 is: 627,678.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,043.26 : 1,002,666.48 = 455,135.90 : x
  2. Step 2: Convert to fraction form
    727,043.26/1,002,666.48 = 455,135.90/x
  3. Step 3: Cross multiply
    727,043.26x = 1,002,666.48 × 455,135.90
  4. Step 4: Simplify right side
    727,043.26x = 456,349,510,774.63
  5. Step 5: Solve for x
    x = 456,349,510,774.63/727,043.26
  6. Step 6: Final answer
    x = 627,678.62

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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.