Home / 640,301.02-883,538.49-353,781.88

Finding the Fourth Proportional to 640,301.02, 883,538.49 and 353,781.88

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Solution

The fourth proportional to 640,301.02, 883,538.49 and 353,781.88 is: 488,176.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,301.02 : 883,538.49 = 353,781.88 : x
  2. Step 2: Convert to fraction form
    640,301.02/883,538.49 = 353,781.88/x
  3. Step 3: Cross multiply
    640,301.02x = 883,538.49 × 353,781.88
  4. Step 4: Simplify right side
    640,301.02x = 312,579,908,044.56
  5. Step 5: Solve for x
    x = 312,579,908,044.56/640,301.02
  6. Step 6: Final answer
    x = 488,176.50

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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.