Home / 442,942.60-662,664.30-384,428.20

Finding the Fourth Proportional to 442,942.60, 662,664.30 and 384,428.20

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Solution

The fourth proportional to 442,942.60, 662,664.30 and 384,428.20 is: 575,123.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,942.60 : 662,664.30 = 384,428.20 : x
  2. Step 2: Convert to fraction form
    442,942.60/662,664.30 = 384,428.20/x
  3. Step 3: Cross multiply
    442,942.60x = 662,664.30 × 384,428.20
  4. Step 4: Simplify right side
    442,942.60x = 254,746,844,053.26
  5. Step 5: Solve for x
    x = 254,746,844,053.26/442,942.60
  6. Step 6: Final answer
    x = 575,123.83

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1.5x scale

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.