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Finding the Fourth Proportional to 616,290.72, 850,395.84 and 344,324.40

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Solution

The fourth proportional to 616,290.72, 850,395.84 and 344,324.40 is: 475,119.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,290.72 : 850,395.84 = 344,324.40 : x
  2. Step 2: Convert to fraction form
    616,290.72/850,395.84 = 344,324.40/x
  3. Step 3: Cross multiply
    616,290.72x = 850,395.84 × 344,324.40
  4. Step 4: Simplify right side
    616,290.72x = 292,812,037,370.50
  5. Step 5: Solve for x
    x = 292,812,037,370.50/616,290.72
  6. Step 6: Final answer
    x = 475,119.98

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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.