Home / 761,603.21-1,050,994.55-422,064.17

Finding the Fourth Proportional to 761,603.21, 1,050,994.55 and 422,064.17

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Solution

The fourth proportional to 761,603.21, 1,050,994.55 and 422,064.17 is: 582,438.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,603.21 : 1,050,994.55 = 422,064.17 : x
  2. Step 2: Convert to fraction form
    761,603.21/1,050,994.55 = 422,064.17/x
  3. Step 3: Cross multiply
    761,603.21x = 1,050,994.55 × 422,064.17
  4. Step 4: Simplify right side
    761,603.21x = 443,587,140,309.95
  5. Step 5: Solve for x
    x = 443,587,140,309.95/761,603.21
  6. Step 6: Final answer
    x = 582,438.64

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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.