Home / 911,785.52-1,258,289.16-503,913.80

Finding the Fourth Proportional to 911,785.52, 1,258,289.16 and 503,913.80

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Solution

The fourth proportional to 911,785.52, 1,258,289.16 and 503,913.80 is: 695,414.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,785.52 : 1,258,289.16 = 503,913.80 : x
  2. Step 2: Convert to fraction form
    911,785.52/1,258,289.16 = 503,913.80/x
  3. Step 3: Cross multiply
    911,785.52x = 1,258,289.16 × 503,913.80
  4. Step 4: Simplify right side
    911,785.52x = 634,069,272,114.41
  5. Step 5: Solve for x
    x = 634,069,272,114.41/911,785.52
  6. Step 6: Final answer
    x = 695,414.94

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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.