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Finding the Fourth Proportional to 607,812.91, 838,814.10 and 349,729.06

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Solution

The fourth proportional to 607,812.91, 838,814.10 and 349,729.06 is: 482,644.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,812.91 : 838,814.10 = 349,729.06 : x
  2. Step 2: Convert to fraction form
    607,812.91/838,814.10 = 349,729.06/x
  3. Step 3: Cross multiply
    607,812.91x = 838,814.10 × 349,729.06
  4. Step 4: Simplify right side
    607,812.91x = 293,357,669,479.87
  5. Step 5: Solve for x
    x = 293,357,669,479.87/607,812.91
  6. Step 6: Final answer
    x = 482,644.69

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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.