Home / 709,848.54-979,577.64-403,918.02

Finding the Fourth Proportional to 709,848.54, 979,577.64 and 403,918.02

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Solution

The fourth proportional to 709,848.54, 979,577.64 and 403,918.02 is: 557,399.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,848.54 : 979,577.64 = 403,918.02 : x
  2. Step 2: Convert to fraction form
    709,848.54/979,577.64 = 403,918.02/x
  3. Step 3: Cross multiply
    709,848.54x = 979,577.64 × 403,918.02
  4. Step 4: Simplify right side
    709,848.54x = 395,669,060,785.07
  5. Step 5: Solve for x
    x = 395,669,060,785.07/709,848.54
  6. Step 6: Final answer
    x = 557,399.27

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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.