Home / 1,306,055.40-1,802,538.34-725,409

Finding the Fourth Proportional to 1,306,055.40, 1,802,538.34 and 725,409

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Solution

The fourth proportional to 1,306,055.40, 1,802,538.34 and 725,409 is: 1,001,165.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,306,055.40 : 1,802,538.34 = 725,409 : x
  2. Step 2: Convert to fraction form
    1,306,055.40/1,802,538.34 = 725,409/x
  3. Step 3: Cross multiply
    1,306,055.40x = 1,802,538.34 × 725,409
  4. Step 4: Simplify right side
    1,306,055.40x = 1,307,577,534,681.06
  5. Step 5: Solve for x
    x = 1,307,577,534,681.06/1,306,055.40
  6. Step 6: Final answer
    x = 1,001,165.44

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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.