Home / 1,009,939.03-1,392,455.25-646,765.81

Finding the Fourth Proportional to 1,009,939.03, 1,392,455.25 and 646,765.81

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Solution

The fourth proportional to 1,009,939.03, 1,392,455.25 and 646,765.81 is: 891,729.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,009,939.03 : 1,392,455.25 = 646,765.81 : x
  2. Step 2: Convert to fraction form
    1,009,939.03/1,392,455.25 = 646,765.81/x
  3. Step 3: Cross multiply
    1,009,939.03x = 1,392,455.25 × 646,765.81
  4. Step 4: Simplify right side
    1,009,939.03x = 900,592,447,655.00
  5. Step 5: Solve for x
    x = 900,592,447,655.00/1,009,939.03
  6. Step 6: Final answer
    x = 891,729.52

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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.