Home / 641,031.80-884,631.66-354,544.52

Finding the Fourth Proportional to 641,031.80, 884,631.66 and 354,544.52

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Solution

The fourth proportional to 641,031.80, 884,631.66 and 354,544.52 is: 489,275.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,031.80 : 884,631.66 = 354,544.52 : x
  2. Step 2: Convert to fraction form
    641,031.80/884,631.66 = 354,544.52/x
  3. Step 3: Cross multiply
    641,031.80x = 884,631.66 × 354,544.52
  4. Step 4: Simplify right side
    641,031.80x = 313,641,307,271.50
  5. Step 5: Solve for x
    x = 313,641,307,271.50/641,031.80
  6. Step 6: Final answer
    x = 489,275.74

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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.