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Finding the Fourth Proportional to 616,120.40, 922,625.40 and 404,613.20

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Solution

The fourth proportional to 616,120.40, 922,625.40 and 404,613.20 is: 605,898.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,120.40 : 922,625.40 = 404,613.20 : x
  2. Step 2: Convert to fraction form
    616,120.40/922,625.40 = 404,613.20/x
  3. Step 3: Cross multiply
    616,120.40x = 922,625.40 × 404,613.20
  4. Step 4: Simplify right side
    616,120.40x = 373,306,415,495.28
  5. Step 5: Solve for x
    x = 373,306,415,495.28/616,120.40
  6. Step 6: Final answer
    x = 605,898.48

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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.