Home / 819,270.06-1,130,129.62-512,814.46

Finding the Fourth Proportional to 819,270.06, 1,130,129.62 and 512,814.46

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Solution

The fourth proportional to 819,270.06, 1,130,129.62 and 512,814.46 is: 707,394.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,270.06 : 1,130,129.62 = 512,814.46 : x
  2. Step 2: Convert to fraction form
    819,270.06/1,130,129.62 = 512,814.46/x
  3. Step 3: Cross multiply
    819,270.06x = 1,130,129.62 × 512,814.46
  4. Step 4: Simplify right side
    819,270.06x = 579,546,810,810.31
  5. Step 5: Solve for x
    x = 579,546,810,810.31/819,270.06
  6. Step 6: Final answer
    x = 707,394.10

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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.