Home / 452,721.84-623,965.32-331,605.78

Finding the Fourth Proportional to 452,721.84, 623,965.32 and 331,605.78

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Solution

The fourth proportional to 452,721.84, 623,965.32 and 331,605.78 is: 457,036.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,721.84 : 623,965.32 = 331,605.78 : x
  2. Step 2: Convert to fraction form
    452,721.84/623,965.32 = 331,605.78/x
  3. Step 3: Cross multiply
    452,721.84x = 623,965.32 × 331,605.78
  4. Step 4: Simplify right side
    452,721.84x = 206,910,506,631.55
  5. Step 5: Solve for x
    x = 206,910,506,631.55/452,721.84
  6. Step 6: Final answer
    x = 457,036.72

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1.5x scale

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.