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Finding the Fourth Proportional to 872,900.90, 1,204,422.60 and 510,254.62

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Solution

The fourth proportional to 872,900.90, 1,204,422.60 and 510,254.62 is: 704,045.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,900.90 : 1,204,422.60 = 510,254.62 : x
  2. Step 2: Convert to fraction form
    872,900.90/1,204,422.60 = 510,254.62/x
  3. Step 3: Cross multiply
    872,900.90x = 1,204,422.60 × 510,254.62
  4. Step 4: Simplify right side
    872,900.90x = 614,562,196,082.41
  5. Step 5: Solve for x
    x = 614,562,196,082.41/872,900.90
  6. Step 6: Final answer
    x = 704,045.78

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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.