Home / 911,435.53-1,258,135.32-815,776.15

Finding the Fourth Proportional to 911,435.53, 1,258,135.32 and 815,776.15

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Solution

The fourth proportional to 911,435.53, 1,258,135.32 and 815,776.15 is: 1,126,088.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,435.53 : 1,258,135.32 = 815,776.15 : x
  2. Step 2: Convert to fraction form
    911,435.53/1,258,135.32 = 815,776.15/x
  3. Step 3: Cross multiply
    911,435.53x = 1,258,135.32 × 815,776.15
  4. Step 4: Simplify right side
    911,435.53x = 1,026,356,787,528.62
  5. Step 5: Solve for x
    x = 1,026,356,787,528.62/911,435.53
  6. Step 6: Final answer
    x = 1,126,088.19

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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.