Home / 442,890.60-662,586.30-384,376.20

Finding the Fourth Proportional to 442,890.60, 662,586.30 and 384,376.20

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Solution

The fourth proportional to 442,890.60, 662,586.30 and 384,376.20 is: 575,045.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,890.60 : 662,586.30 = 384,376.20 : x
  2. Step 2: Convert to fraction form
    442,890.60/662,586.30 = 384,376.20/x
  3. Step 3: Cross multiply
    442,890.60x = 662,586.30 × 384,376.20
  4. Step 4: Simplify right side
    442,890.60x = 254,682,404,166.06
  5. Step 5: Solve for x
    x = 254,682,404,166.06/442,890.60
  6. Step 6: Final answer
    x = 575,045.86

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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.