Home / 479,688.02-719,466.50-142,780.68

Finding the Fourth Proportional to 479,688.02, 719,466.50 and 142,780.68

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Solution

The fourth proportional to 479,688.02, 719,466.50 and 142,780.68 is: 214,151.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,688.02 : 719,466.50 = 142,780.68 : x
  2. Step 2: Convert to fraction form
    479,688.02/719,466.50 = 142,780.68/x
  3. Step 3: Cross multiply
    479,688.02x = 719,466.50 × 142,780.68
  4. Step 4: Simplify right side
    479,688.02x = 102,725,916,107.22
  5. Step 5: Solve for x
    x = 102,725,916,107.22/479,688.02
  6. Step 6: Final answer
    x = 214,151.51

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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.