Home / 1,378,774.71-1,902,681.63-766,914.39

Finding the Fourth Proportional to 1,378,774.71, 1,902,681.63 and 766,914.39

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Solution

The fourth proportional to 1,378,774.71, 1,902,681.63 and 766,914.39 is: 1,058,326.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,774.71 : 1,902,681.63 = 766,914.39 : x
  2. Step 2: Convert to fraction form
    1,378,774.71/1,902,681.63 = 766,914.39/x
  3. Step 3: Cross multiply
    1,378,774.71x = 1,902,681.63 × 766,914.39
  4. Step 4: Simplify right side
    1,378,774.71x = 1,459,193,921,635.66
  5. Step 5: Solve for x
    x = 1,459,193,921,635.66/1,378,774.71
  6. Step 6: Final answer
    x = 1,058,326.58

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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.