Home / 646,766.52-892,479.90-360,280.45

Finding the Fourth Proportional to 646,766.52, 892,479.90 and 360,280.45

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Solution

The fourth proportional to 646,766.52, 892,479.90 and 360,280.45 is: 497,154.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,766.52 : 892,479.90 = 360,280.45 : x
  2. Step 2: Convert to fraction form
    646,766.52/892,479.90 = 360,280.45/x
  3. Step 3: Cross multiply
    646,766.52x = 892,479.90 × 360,280.45
  4. Step 4: Simplify right side
    646,766.52x = 321,543,059,987.96
  5. Step 5: Solve for x
    x = 321,543,059,987.96/646,766.52
  6. Step 6: Final answer
    x = 497,154.77

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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.