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Finding the Fourth Proportional to 501,653.45, 692,856.72 and 330,337.31

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Solution

The fourth proportional to 501,653.45, 692,856.72 and 330,337.31 is: 456,244.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,653.45 : 692,856.72 = 330,337.31 : x
  2. Step 2: Convert to fraction form
    501,653.45/692,856.72 = 330,337.31/x
  3. Step 3: Cross multiply
    501,653.45x = 692,856.72 × 330,337.31
  4. Step 4: Simplify right side
    501,653.45x = 228,876,421,635.94
  5. Step 5: Solve for x
    x = 228,876,421,635.94/501,653.45
  6. Step 6: Final answer
    x = 456,244.09

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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.