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Finding the Fourth Proportional to 640,496.18, 883,888.26 and 350,108.22

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Solution

The fourth proportional to 640,496.18, 883,888.26 and 350,108.22 is: 483,151.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,496.18 : 883,888.26 = 350,108.22 : x
  2. Step 2: Convert to fraction form
    640,496.18/883,888.26 = 350,108.22/x
  3. Step 3: Cross multiply
    640,496.18x = 883,888.26 × 350,108.22
  4. Step 4: Simplify right side
    640,496.18x = 309,456,545,387.50
  5. Step 5: Solve for x
    x = 309,456,545,387.50/640,496.18
  6. Step 6: Final answer
    x = 483,151.27

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1.5x scale

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.