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Finding the Fourth Proportional to 611,462.36, 913,076.08 and 499,365.12

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Solution

The fourth proportional to 611,462.36, 913,076.08 and 499,365.12 is: 745,685.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,462.36 : 913,076.08 = 499,365.12 : x
  2. Step 2: Convert to fraction form
    611,462.36/913,076.08 = 499,365.12/x
  3. Step 3: Cross multiply
    611,462.36x = 913,076.08 × 499,365.12
  4. Step 4: Simplify right side
    611,462.36x = 455,958,346,258.33
  5. Step 5: Solve for x
    x = 455,958,346,258.33/611,462.36
  6. Step 6: Final answer
    x = 745,685.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.