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Finding the Fourth Proportional to 400,316.91, 601,915.71 and 369,108.76

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Solution

The fourth proportional to 400,316.91, 601,915.71 and 369,108.76 is: 554,991.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,316.91 : 601,915.71 = 369,108.76 : x
  2. Step 2: Convert to fraction form
    400,316.91/601,915.71 = 369,108.76/x
  3. Step 3: Cross multiply
    400,316.91x = 601,915.71 × 369,108.76
  4. Step 4: Simplify right side
    400,316.91x = 222,172,361,342.62
  5. Step 5: Solve for x
    x = 222,172,361,342.62/400,316.91
  6. Step 6: Final answer
    x = 554,991.20

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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.