Home / 911,815.83-1,258,309.77-498,360.94

Finding the Fourth Proportional to 911,815.83, 1,258,309.77 and 498,360.94

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Solution

The fourth proportional to 911,815.83, 1,258,309.77 and 498,360.94 is: 687,740.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,815.83 : 1,258,309.77 = 498,360.94 : x
  2. Step 2: Convert to fraction form
    911,815.83/1,258,309.77 = 498,360.94/x
  3. Step 3: Cross multiply
    911,815.83x = 1,258,309.77 × 498,360.94
  4. Step 4: Simplify right side
    911,815.83x = 627,092,439,788.38
  5. Step 5: Solve for x
    x = 627,092,439,788.38/911,815.83
  6. Step 6: Final answer
    x = 687,740.24

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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.