Home / 881,402.64-1,216,267.02-499,489.26

Finding the Fourth Proportional to 881,402.64, 1,216,267.02 and 499,489.26

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Solution

The fourth proportional to 881,402.64, 1,216,267.02 and 499,489.26 is: 689,256.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,402.64 : 1,216,267.02 = 499,489.26 : x
  2. Step 2: Convert to fraction form
    881,402.64/1,216,267.02 = 499,489.26/x
  3. Step 3: Cross multiply
    881,402.64x = 1,216,267.02 × 499,489.26
  4. Step 4: Simplify right side
    881,402.64x = 607,512,313,782.21
  5. Step 5: Solve for x
    x = 607,512,313,782.21/881,402.64
  6. Step 6: Final answer
    x = 689,256.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.