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Finding the Fourth Proportional to 810,351, 1,118,284.38 and 452,655

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Solution

The fourth proportional to 810,351, 1,118,284.38 and 452,655 is: 624,663.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,351 : 1,118,284.38 = 452,655 : x
  2. Step 2: Convert to fraction form
    810,351/1,118,284.38 = 452,655/x
  3. Step 3: Cross multiply
    810,351x = 1,118,284.38 × 452,655
  4. Step 4: Simplify right side
    810,351x = 506,197,016,028.90
  5. Step 5: Solve for x
    x = 506,197,016,028.90/810,351
  6. Step 6: Final answer
    x = 624,663.90

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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.