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Finding the Fourth Proportional to 1,756,830, 2,635,245 and 558,754.80

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Solution

The fourth proportional to 1,756,830, 2,635,245 and 558,754.80 is: 838,132.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,756,830 : 2,635,245 = 558,754.80 : x
  2. Step 2: Convert to fraction form
    1,756,830/2,635,245 = 558,754.80/x
  3. Step 3: Cross multiply
    1,756,830x = 2,635,245 × 558,754.80
  4. Step 4: Simplify right side
    1,756,830x = 1,472,455,792,926.00
  5. Step 5: Solve for x
    x = 1,472,455,792,926.00/1,756,830
  6. Step 6: Final answer
    x = 838,132.20

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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.