Home / 482,639.94-723,018.15-315,922.50

Finding the Fourth Proportional to 482,639.94, 723,018.15 and 315,922.50

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Solution

The fourth proportional to 482,639.94, 723,018.15 and 315,922.50 is: 473,267.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,639.94 : 723,018.15 = 315,922.50 : x
  2. Step 2: Convert to fraction form
    482,639.94/723,018.15 = 315,922.50/x
  3. Step 3: Cross multiply
    482,639.94x = 723,018.15 × 315,922.50
  4. Step 4: Simplify right side
    482,639.94x = 228,417,701,493.38
  5. Step 5: Solve for x
    x = 228,417,701,493.38/482,639.94
  6. Step 6: Final answer
    x = 473,267.30

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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.