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Finding the Fourth Proportional to 553,636.03, 764,017.75 and 298,987.22

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Solution

The fourth proportional to 553,636.03, 764,017.75 and 298,987.22 is: 412,602.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,636.03 : 764,017.75 = 298,987.22 : x
  2. Step 2: Convert to fraction form
    553,636.03/764,017.75 = 298,987.22/x
  3. Step 3: Cross multiply
    553,636.03x = 764,017.75 × 298,987.22
  4. Step 4: Simplify right side
    553,636.03x = 228,431,543,103.16
  5. Step 5: Solve for x
    x = 228,431,543,103.16/553,636.03
  6. Step 6: Final answer
    x = 412,602.38

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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.