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Finding the Fourth Proportional to 572,457.76, 862,801.41 and 493,449.32

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Solution

The fourth proportional to 572,457.76, 862,801.41 and 493,449.32 is: 743,720.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,457.76 : 862,801.41 = 493,449.32 : x
  2. Step 2: Convert to fraction form
    572,457.76/862,801.41 = 493,449.32/x
  3. Step 3: Cross multiply
    572,457.76x = 862,801.41 × 493,449.32
  4. Step 4: Simplify right side
    572,457.76x = 425,748,766,670.77
  5. Step 5: Solve for x
    x = 425,748,766,670.77/572,457.76
  6. Step 6: Final answer
    x = 743,720.84

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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.