Home / 1,291,602.96-1,782,251.64-718,602.48

Finding the Fourth Proportional to 1,291,602.96, 1,782,251.64 and 718,602.48

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Solution

The fourth proportional to 1,291,602.96, 1,782,251.64 and 718,602.48 is: 991,582.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,602.96 : 1,782,251.64 = 718,602.48 : x
  2. Step 2: Convert to fraction form
    1,291,602.96/1,782,251.64 = 718,602.48/x
  3. Step 3: Cross multiply
    1,291,602.96x = 1,782,251.64 × 718,602.48
  4. Step 4: Simplify right side
    1,291,602.96x = 1,280,730,448,488.07
  5. Step 5: Solve for x
    x = 1,280,730,448,488.07/1,291,602.96
  6. Step 6: Final answer
    x = 991,582.16

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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.