Home / 646,320.28-968,980.86-326,307.44

Finding the Fourth Proportional to 646,320.28, 968,980.86 and 326,307.44

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Solution

The fourth proportional to 646,320.28, 968,980.86 and 326,307.44 is: 489,208.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,320.28 : 968,980.86 = 326,307.44 : x
  2. Step 2: Convert to fraction form
    646,320.28/968,980.86 = 326,307.44/x
  3. Step 3: Cross multiply
    646,320.28x = 968,980.86 × 326,307.44
  4. Step 4: Simplify right side
    646,320.28x = 316,185,663,835.60
  5. Step 5: Solve for x
    x = 316,185,663,835.60/646,320.28
  6. Step 6: Final answer
    x = 489,208.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.