Home / 1,185,130.89-1,635,468.35-641,254.68

Finding the Fourth Proportional to 1,185,130.89, 1,635,468.35 and 641,254.68

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Solution

The fourth proportional to 1,185,130.89, 1,635,468.35 and 641,254.68 is: 884,924.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,130.89 : 1,635,468.35 = 641,254.68 : x
  2. Step 2: Convert to fraction form
    1,185,130.89/1,635,468.35 = 641,254.68/x
  3. Step 3: Cross multiply
    1,185,130.89x = 1,635,468.35 × 641,254.68
  4. Step 4: Simplify right side
    1,185,130.89x = 1,048,751,730,223.10
  5. Step 5: Solve for x
    x = 1,048,751,730,223.10/1,185,130.89
  6. Step 6: Final answer
    x = 884,924.81

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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.