Home / 911,948.70-1,258,494.14-498,486.04

Finding the Fourth Proportional to 911,948.70, 1,258,494.14 and 498,486.04

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Solution

The fourth proportional to 911,948.70, 1,258,494.14 and 498,486.04 is: 687,913.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,948.70 : 1,258,494.14 = 498,486.04 : x
  2. Step 2: Convert to fraction form
    911,948.70/1,258,494.14 = 498,486.04/x
  3. Step 3: Cross multiply
    911,948.70x = 1,258,494.14 × 498,486.04
  4. Step 4: Simplify right side
    911,948.70x = 627,341,764,681.20
  5. Step 5: Solve for x
    x = 627,341,764,681.20/911,948.70
  6. Step 6: Final answer
    x = 687,913.44

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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.