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Finding the Fourth Proportional to 1,018,872, 1,528,541.28 and 354,024

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Solution

The fourth proportional to 1,018,872, 1,528,541.28 and 354,024 is: 531,117.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,872 : 1,528,541.28 = 354,024 : x
  2. Step 2: Convert to fraction form
    1,018,872/1,528,541.28 = 354,024/x
  3. Step 3: Cross multiply
    1,018,872x = 1,528,541.28 × 354,024
  4. Step 4: Simplify right side
    1,018,872x = 541,140,298,110.72
  5. Step 5: Solve for x
    x = 541,140,298,110.72/1,018,872
  6. Step 6: Final answer
    x = 531,117.06

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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.