Home / 488,822.80-733,890.30-312,113.20

Finding the Fourth Proportional to 488,822.80, 733,890.30 and 312,113.20

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Solution

The fourth proportional to 488,822.80, 733,890.30 and 312,113.20 is: 468,588.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,822.80 : 733,890.30 = 312,113.20 : x
  2. Step 2: Convert to fraction form
    488,822.80/733,890.30 = 312,113.20/x
  3. Step 3: Cross multiply
    488,822.80x = 733,890.30 × 312,113.20
  4. Step 4: Simplify right side
    488,822.80x = 229,056,849,981.96
  5. Step 5: Solve for x
    x = 229,056,849,981.96/488,822.80
  6. Step 6: Final answer
    x = 468,588.72

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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.