Home / 911,622.96-1,258,013.22-503,718.30

Finding the Fourth Proportional to 911,622.96, 1,258,013.22 and 503,718.30

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Solution

The fourth proportional to 911,622.96, 1,258,013.22 and 503,718.30 is: 695,116.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,622.96 : 1,258,013.22 = 503,718.30 : x
  2. Step 2: Convert to fraction form
    911,622.96/1,258,013.22 = 503,718.30/x
  3. Step 3: Cross multiply
    911,622.96x = 1,258,013.22 × 503,718.30
  4. Step 4: Simplify right side
    911,622.96x = 633,684,280,555.93
  5. Step 5: Solve for x
    x = 633,684,280,555.93/911,622.96
  6. Step 6: Final answer
    x = 695,116.63

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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.