Home / 432,051.60-648,077.40-397,837.20

Finding the Fourth Proportional to 432,051.60, 648,077.40 and 397,837.20

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Solution

The fourth proportional to 432,051.60, 648,077.40 and 397,837.20 is: 596,755.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,051.60 : 648,077.40 = 397,837.20 : x
  2. Step 2: Convert to fraction form
    432,051.60/648,077.40 = 397,837.20/x
  3. Step 3: Cross multiply
    432,051.60x = 648,077.40 × 397,837.20
  4. Step 4: Simplify right side
    432,051.60x = 257,829,298,199.28
  5. Step 5: Solve for x
    x = 257,829,298,199.28/432,051.60
  6. Step 6: Final answer
    x = 596,755.80

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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.