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Finding the Fourth Proportional to 750,870, 1,036,200.60 and 449,064

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Solution

The fourth proportional to 750,870, 1,036,200.60 and 449,064 is: 619,708.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,870 : 1,036,200.60 = 449,064 : x
  2. Step 2: Convert to fraction form
    750,870/1,036,200.60 = 449,064/x
  3. Step 3: Cross multiply
    750,870x = 1,036,200.60 × 449,064
  4. Step 4: Simplify right side
    750,870x = 465,320,386,238.40
  5. Step 5: Solve for x
    x = 465,320,386,238.40/750,870
  6. Step 6: Final answer
    x = 619,708.32

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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.