Home / 911,722.03-1,258,113.47-503,820

Finding the Fourth Proportional to 911,722.03, 1,258,113.47 and 503,820

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Solution

The fourth proportional to 911,722.03, 1,258,113.47 and 503,820 is: 695,236.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,722.03 : 1,258,113.47 = 503,820 : x
  2. Step 2: Convert to fraction form
    911,722.03/1,258,113.47 = 503,820/x
  3. Step 3: Cross multiply
    911,722.03x = 1,258,113.47 × 503,820
  4. Step 4: Simplify right side
    911,722.03x = 633,862,725,936.30
  5. Step 5: Solve for x
    x = 633,862,725,936.30/911,722.03
  6. Step 6: Final answer
    x = 695,236.82

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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.