Home / 1,007,533.60-1,388,927.53-765,395.80

Finding the Fourth Proportional to 1,007,533.60, 1,388,927.53 and 765,395.80

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Solution

The fourth proportional to 1,007,533.60, 1,388,927.53 and 765,395.80 is: 1,055,130.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,007,533.60 : 1,388,927.53 = 765,395.80 : x
  2. Step 2: Convert to fraction form
    1,007,533.60/1,388,927.53 = 765,395.80/x
  3. Step 3: Cross multiply
    1,007,533.60x = 1,388,927.53 × 765,395.80
  4. Step 4: Simplify right side
    1,007,533.60x = 1,063,079,293,298.12
  5. Step 5: Solve for x
    x = 1,063,079,293,298.12/1,007,533.60
  6. Step 6: Final answer
    x = 1,055,130.36

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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.