Home / 641,264.45-884,867.15-369,420.35

Finding the Fourth Proportional to 641,264.45, 884,867.15 and 369,420.35

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Solution

The fourth proportional to 641,264.45, 884,867.15 and 369,420.35 is: 509,755.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,264.45 : 884,867.15 = 369,420.35 : x
  2. Step 2: Convert to fraction form
    641,264.45/884,867.15 = 369,420.35/x
  3. Step 3: Cross multiply
    641,264.45x = 884,867.15 × 369,420.35
  4. Step 4: Simplify right side
    641,264.45x = 326,887,930,409.40
  5. Step 5: Solve for x
    x = 326,887,930,409.40/641,264.45
  6. Step 6: Final answer
    x = 509,755.27

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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.