Home / 658,214.10-987,029.55-303,336.90

Finding the Fourth Proportional to 658,214.10, 987,029.55 and 303,336.90

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Solution

The fourth proportional to 658,214.10, 987,029.55 and 303,336.90 is: 454,870.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,214.10 : 987,029.55 = 303,336.90 : x
  2. Step 2: Convert to fraction form
    658,214.10/987,029.55 = 303,336.90/x
  3. Step 3: Cross multiply
    658,214.10x = 987,029.55 × 303,336.90
  4. Step 4: Simplify right side
    658,214.10x = 299,402,483,905.40
  5. Step 5: Solve for x
    x = 299,402,483,905.40/658,214.10
  6. Step 6: Final answer
    x = 454,870.97

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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.