Home / 723,867.40-998,938.16-401,577.48

Finding the Fourth Proportional to 723,867.40, 998,938.16 and 401,577.48

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Solution

The fourth proportional to 723,867.40, 998,938.16 and 401,577.48 is: 554,177.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,867.40 : 998,938.16 = 401,577.48 : x
  2. Step 2: Convert to fraction form
    723,867.40/998,938.16 = 401,577.48/x
  3. Step 3: Cross multiply
    723,867.40x = 998,938.16 × 401,577.48
  4. Step 4: Simplify right side
    723,867.40x = 401,151,068,968.64
  5. Step 5: Solve for x
    x = 401,151,068,968.64/723,867.40
  6. Step 6: Final answer
    x = 554,177.56

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1.5x scale

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.