Home / 911,954.98-1,258,502.79-498,492.28

Finding the Fourth Proportional to 911,954.98, 1,258,502.79 and 498,492.28

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Solution

The fourth proportional to 911,954.98, 1,258,502.79 and 498,492.28 is: 687,922.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,954.98 : 1,258,502.79 = 498,492.28 : x
  2. Step 2: Convert to fraction form
    911,954.98/1,258,502.79 = 498,492.28/x
  3. Step 3: Cross multiply
    911,954.98x = 1,258,502.79 × 498,492.28
  4. Step 4: Simplify right side
    911,954.98x = 627,353,925,173.46
  5. Step 5: Solve for x
    x = 627,353,925,173.46/911,954.98
  6. Step 6: Final answer
    x = 687,922.03

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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.