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Finding the Fourth Proportional to 493,449.30, 740,001.15 and 256,713.30

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Solution

The fourth proportional to 493,449.30, 740,001.15 and 256,713.30 is: 384,980.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,449.30 : 740,001.15 = 256,713.30 : x
  2. Step 2: Convert to fraction form
    493,449.30/740,001.15 = 256,713.30/x
  3. Step 3: Cross multiply
    493,449.30x = 740,001.15 × 256,713.30
  4. Step 4: Simplify right side
    493,449.30x = 189,968,137,220.30
  5. Step 5: Solve for x
    x = 189,968,137,220.30/493,449.30
  6. Step 6: Final answer
    x = 384,980.05

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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.