Home / 641,265.45-884,868.52-369,421.35

Finding the Fourth Proportional to 641,265.45, 884,868.52 and 369,421.35

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Solution

The fourth proportional to 641,265.45, 884,868.52 and 369,421.35 is: 509,756.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,265.45 : 884,868.52 = 369,421.35 : x
  2. Step 2: Convert to fraction form
    641,265.45/884,868.52 = 369,421.35/x
  3. Step 3: Cross multiply
    641,265.45x = 884,868.52 × 369,421.35
  4. Step 4: Simplify right side
    641,265.45x = 326,889,323,230.90
  5. Step 5: Solve for x
    x = 326,889,323,230.90/641,265.45
  6. Step 6: Final answer
    x = 509,756.64

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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.