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Finding the Fourth Proportional to 572,458.30, 862,802.21 and 493,449.85

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Solution

The fourth proportional to 572,458.30, 862,802.21 and 493,449.85 is: 743,721.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,458.30 : 862,802.21 = 493,449.85 : x
  2. Step 2: Convert to fraction form
    572,458.30/862,802.21 = 493,449.85/x
  3. Step 3: Cross multiply
    572,458.30x = 862,802.21 × 493,449.85
  4. Step 4: Simplify right side
    572,458.30x = 425,749,621,104.17
  5. Step 5: Solve for x
    x = 425,749,621,104.17/572,458.30
  6. Step 6: Final answer
    x = 743,721.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.