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Finding the Fourth Proportional to 1,079,797, 1,490,119.98 and 627,117.16

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Solution

The fourth proportional to 1,079,797, 1,490,119.98 and 627,117.16 is: 865,421.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,797 : 1,490,119.98 = 627,117.16 : x
  2. Step 2: Convert to fraction form
    1,079,797/1,490,119.98 = 627,117.16/x
  3. Step 3: Cross multiply
    1,079,797x = 1,490,119.98 × 627,117.16
  4. Step 4: Simplify right side
    1,079,797x = 934,479,809,916.86
  5. Step 5: Solve for x
    x = 934,479,809,916.86/1,079,797
  6. Step 6: Final answer
    x = 865,421.75

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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.