Home / 1,028,218.40-1,418,739.76-646,023.76

Finding the Fourth Proportional to 1,028,218.40, 1,418,739.76 and 646,023.76

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Solution

The fourth proportional to 1,028,218.40, 1,418,739.76 and 646,023.76 is: 891,386.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028,218.40 : 1,418,739.76 = 646,023.76 : x
  2. Step 2: Convert to fraction form
    1,028,218.40/1,418,739.76 = 646,023.76/x
  3. Step 3: Cross multiply
    1,028,218.40x = 1,418,739.76 × 646,023.76
  4. Step 4: Simplify right side
    1,028,218.40x = 916,539,594,216.70
  5. Step 5: Solve for x
    x = 916,539,594,216.70/1,028,218.40
  6. Step 6: Final answer
    x = 891,386.10

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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.