Home / 829,994.40-1,145,377.20-467,416.80

Finding the Fourth Proportional to 829,994.40, 1,145,377.20 and 467,416.80

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Solution

The fourth proportional to 829,994.40, 1,145,377.20 and 467,416.80 is: 645,026.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,994.40 : 1,145,377.20 = 467,416.80 : x
  2. Step 2: Convert to fraction form
    829,994.40/1,145,377.20 = 467,416.80/x
  3. Step 3: Cross multiply
    829,994.40x = 1,145,377.20 × 467,416.80
  4. Step 4: Simplify right side
    829,994.40x = 535,368,545,616.96
  5. Step 5: Solve for x
    x = 535,368,545,616.96/829,994.40
  6. Step 6: Final answer
    x = 645,026.70

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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.