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Finding the Fourth Proportional to 553,637.03, 764,019.13 and 298,988.22

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Solution

The fourth proportional to 553,637.03, 764,019.13 and 298,988.22 is: 412,603.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,637.03 : 764,019.13 = 298,988.22 : x
  2. Step 2: Convert to fraction form
    553,637.03/764,019.13 = 298,988.22/x
  3. Step 3: Cross multiply
    553,637.03x = 764,019.13 × 298,988.22
  4. Step 4: Simplify right side
    553,637.03x = 228,432,719,724.65
  5. Step 5: Solve for x
    x = 228,432,719,724.65/553,637.03
  6. Step 6: Final answer
    x = 412,603.76

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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.