Home / 451,298.05-623,074.48-290,432.66

Finding the Fourth Proportional to 451,298.05, 623,074.48 and 290,432.66

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Solution

The fourth proportional to 451,298.05, 623,074.48 and 290,432.66 is: 400,979.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,298.05 : 623,074.48 = 290,432.66 : x
  2. Step 2: Convert to fraction form
    451,298.05/623,074.48 = 290,432.66/x
  3. Step 3: Cross multiply
    451,298.05x = 623,074.48 × 290,432.66
  4. Step 4: Simplify right side
    451,298.05x = 180,961,174,763.06
  5. Step 5: Solve for x
    x = 180,961,174,763.06/451,298.05
  6. Step 6: Final answer
    x = 400,979.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.