Home / 761,297.90-1,050,115.44-489,719.48

Finding the Fourth Proportional to 761,297.90, 1,050,115.44 and 489,719.48

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Solution

The fourth proportional to 761,297.90, 1,050,115.44 and 489,719.48 is: 675,506.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,297.90 : 1,050,115.44 = 489,719.48 : x
  2. Step 2: Convert to fraction form
    761,297.90/1,050,115.44 = 489,719.48/x
  3. Step 3: Cross multiply
    761,297.90x = 1,050,115.44 × 489,719.48
  4. Step 4: Simplify right side
    761,297.90x = 514,261,987,216.77
  5. Step 5: Solve for x
    x = 514,261,987,216.77/761,297.90
  6. Step 6: Final answer
    x = 675,506.90

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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.