Home / 645,769.73-968,026.58-308,723.06

Finding the Fourth Proportional to 645,769.73, 968,026.58 and 308,723.06

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Solution

The fourth proportional to 645,769.73, 968,026.58 and 308,723.06 is: 462,784.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,769.73 : 968,026.58 = 308,723.06 : x
  2. Step 2: Convert to fraction form
    645,769.73/968,026.58 = 308,723.06/x
  3. Step 3: Cross multiply
    645,769.73x = 968,026.58 × 308,723.06
  4. Step 4: Simplify right side
    645,769.73x = 298,852,129,973.10
  5. Step 5: Solve for x
    x = 298,852,129,973.10/645,769.73
  6. Step 6: Final answer
    x = 462,784.36

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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.