Home / 1,298,090.36-1,791,354.89-717,352.66

Finding the Fourth Proportional to 1,298,090.36, 1,791,354.89 and 717,352.66

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Solution

The fourth proportional to 1,298,090.36, 1,791,354.89 and 717,352.66 is: 989,941.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,090.36 : 1,791,354.89 = 717,352.66 : x
  2. Step 2: Convert to fraction form
    1,298,090.36/1,791,354.89 = 717,352.66/x
  3. Step 3: Cross multiply
    1,298,090.36x = 1,791,354.89 × 717,352.66
  4. Step 4: Simplify right side
    1,298,090.36x = 1,285,033,189,301.71
  5. Step 5: Solve for x
    x = 1,285,033,189,301.71/1,298,090.36
  6. Step 6: Final answer
    x = 989,941.25

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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.