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Finding the Fourth Proportional to 559,962.28, 839,411.28 and 356,988.64

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Solution

The fourth proportional to 559,962.28, 839,411.28 and 356,988.64 is: 535,143.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,962.28 : 839,411.28 = 356,988.64 : x
  2. Step 2: Convert to fraction form
    559,962.28/839,411.28 = 356,988.64/x
  3. Step 3: Cross multiply
    559,962.28x = 839,411.28 × 356,988.64
  4. Step 4: Simplify right side
    559,962.28x = 299,660,291,247.86
  5. Step 5: Solve for x
    x = 299,660,291,247.86/559,962.28
  6. Step 6: Final answer
    x = 535,143.71

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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.