Home / 919,308.74-1,265,758.29-781,196.36

Finding the Fourth Proportional to 919,308.74, 1,265,758.29 and 781,196.36

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Solution

The fourth proportional to 919,308.74, 1,265,758.29 and 781,196.36 is: 1,075,597.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,308.74 : 1,265,758.29 = 781,196.36 : x
  2. Step 2: Convert to fraction form
    919,308.74/1,265,758.29 = 781,196.36/x
  3. Step 3: Cross multiply
    919,308.74x = 1,265,758.29 × 781,196.36
  4. Step 4: Simplify right side
    919,308.74x = 988,805,762,459.03
  5. Step 5: Solve for x
    x = 988,805,762,459.03/919,308.74
  6. Step 6: Final answer
    x = 1,075,597.05

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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.