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Finding the Fourth Proportional to 522,927.10, 784,909.05 and 256,987.90

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Solution

The fourth proportional to 522,927.10, 784,909.05 and 256,987.90 is: 385,736.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,927.10 : 784,909.05 = 256,987.90 : x
  2. Step 2: Convert to fraction form
    522,927.10/784,909.05 = 256,987.90/x
  3. Step 3: Cross multiply
    522,927.10x = 784,909.05 × 256,987.90
  4. Step 4: Simplify right side
    522,927.10x = 201,712,128,450.50
  5. Step 5: Solve for x
    x = 201,712,128,450.50/522,927.10
  6. Step 6: Final answer
    x = 385,736.61

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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.