Home / 1,005,844.90-1,388,023.70-570,291.54

Finding the Fourth Proportional to 1,005,844.90, 1,388,023.70 and 570,291.54

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Solution

The fourth proportional to 1,005,844.90, 1,388,023.70 and 570,291.54 is: 786,978.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,844.90 : 1,388,023.70 = 570,291.54 : x
  2. Step 2: Convert to fraction form
    1,005,844.90/1,388,023.70 = 570,291.54/x
  3. Step 3: Cross multiply
    1,005,844.90x = 1,388,023.70 × 570,291.54
  4. Step 4: Simplify right side
    1,005,844.90x = 791,578,173,429.50
  5. Step 5: Solve for x
    x = 791,578,173,429.50/1,005,844.90
  6. Step 6: Final answer
    x = 786,978.36

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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.