Home / 2,658,852.90-3,987,442.78-861,319.32

Finding the Fourth Proportional to 2,658,852.90, 3,987,442.78 and 861,319.32

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Solution

The fourth proportional to 2,658,852.90, 3,987,442.78 and 861,319.32 is: 1,291,707.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,658,852.90 : 3,987,442.78 = 861,319.32 : x
  2. Step 2: Convert to fraction form
    2,658,852.90/3,987,442.78 = 861,319.32/x
  3. Step 3: Cross multiply
    2,658,852.90x = 3,987,442.78 × 861,319.32
  4. Step 4: Simplify right side
    2,658,852.90x = 3,434,461,503,808.51
  5. Step 5: Solve for x
    x = 3,434,461,503,808.51/2,658,852.90
  6. Step 6: Final answer
    x = 1,291,707.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.