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Finding the Fourth Proportional to 616,389.51, 850,618.68 and 344,457.41

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Solution

The fourth proportional to 616,389.51, 850,618.68 and 344,457.41 is: 475,351.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,389.51 : 850,618.68 = 344,457.41 : x
  2. Step 2: Convert to fraction form
    616,389.51/850,618.68 = 344,457.41/x
  3. Step 3: Cross multiply
    616,389.51x = 850,618.68 × 344,457.41
  4. Step 4: Simplify right side
    616,389.51x = 293,001,908,587.91
  5. Step 5: Solve for x
    x = 293,001,908,587.91/616,389.51
  6. Step 6: Final answer
    x = 475,351.87

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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.