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Finding the Fourth Proportional to 644,524.60, 889,444.92 and 358,037.32

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Solution

The fourth proportional to 644,524.60, 889,444.92 and 358,037.32 is: 494,092.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,524.60 : 889,444.92 = 358,037.32 : x
  2. Step 2: Convert to fraction form
    644,524.60/889,444.92 = 358,037.32/x
  3. Step 3: Cross multiply
    644,524.60x = 889,444.92 × 358,037.32
  4. Step 4: Simplify right side
    644,524.60x = 318,454,475,444.41
  5. Step 5: Solve for x
    x = 318,454,475,444.41/644,524.60
  6. Step 6: Final answer
    x = 494,092.04

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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.