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Finding the Fourth Proportional to 661,900.12, 993,264.90 and 267,916.12

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Solution

The fourth proportional to 661,900.12, 993,264.90 and 267,916.12 is: 402,042.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,900.12 : 993,264.90 = 267,916.12 : x
  2. Step 2: Convert to fraction form
    661,900.12/993,264.90 = 267,916.12/x
  3. Step 3: Cross multiply
    661,900.12x = 993,264.90 × 267,916.12
  4. Step 4: Simplify right side
    661,900.12x = 266,111,678,140.19
  5. Step 5: Solve for x
    x = 266,111,678,140.19/661,900.12
  6. Step 6: Final answer
    x = 402,042.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.