Home / 1,243,447.04-1,715,802.56-784,387.60

Finding the Fourth Proportional to 1,243,447.04, 1,715,802.56 and 784,387.60

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Solution

The fourth proportional to 1,243,447.04, 1,715,802.56 and 784,387.60 is: 1,082,357.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,447.04 : 1,715,802.56 = 784,387.60 : x
  2. Step 2: Convert to fraction form
    1,243,447.04/1,715,802.56 = 784,387.60/x
  3. Step 3: Cross multiply
    1,243,447.04x = 1,715,802.56 × 784,387.60
  4. Step 4: Simplify right side
    1,243,447.04x = 1,345,854,252,112.26
  5. Step 5: Solve for x
    x = 1,345,854,252,112.26/1,243,447.04
  6. Step 6: Final answer
    x = 1,082,357.52

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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.