Home / 498,734.51-688,258.03-283,888.41

Finding the Fourth Proportional to 498,734.51, 688,258.03 and 283,888.41

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Solution

The fourth proportional to 498,734.51, 688,258.03 and 283,888.41 is: 391,768.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,734.51 : 688,258.03 = 283,888.41 : x
  2. Step 2: Convert to fraction form
    498,734.51/688,258.03 = 283,888.41/x
  3. Step 3: Cross multiply
    498,734.51x = 688,258.03 × 283,888.41
  4. Step 4: Simplify right side
    498,734.51x = 195,388,477,096.71
  5. Step 5: Solve for x
    x = 195,388,477,096.71/498,734.51
  6. Step 6: Final answer
    x = 391,768.51

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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.