Home / 645,776.56-968,655.10-290,539.72

Finding the Fourth Proportional to 645,776.56, 968,655.10 and 290,539.72

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Solution

The fourth proportional to 645,776.56, 968,655.10 and 290,539.72 is: 435,805.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,776.56 : 968,655.10 = 290,539.72 : x
  2. Step 2: Convert to fraction form
    645,776.56/968,655.10 = 290,539.72/x
  3. Step 3: Cross multiply
    645,776.56x = 968,655.10 × 290,539.72
  4. Step 4: Simplify right side
    645,776.56x = 281,432,781,530.57
  5. Step 5: Solve for x
    x = 281,432,781,530.57/645,776.56
  6. Step 6: Final answer
    x = 435,805.20

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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.