Home / 1,137,745.28-1,570,074.90-621,492.86

Finding the Fourth Proportional to 1,137,745.28, 1,570,074.90 and 621,492.86

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Solution

The fourth proportional to 1,137,745.28, 1,570,074.90 and 621,492.86 is: 857,652.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,137,745.28 : 1,570,074.90 = 621,492.86 : x
  2. Step 2: Convert to fraction form
    1,137,745.28/1,570,074.90 = 621,492.86/x
  3. Step 3: Cross multiply
    1,137,745.28x = 1,570,074.90 × 621,492.86
  4. Step 4: Simplify right side
    1,137,745.28x = 975,790,340,015.21
  5. Step 5: Solve for x
    x = 975,790,340,015.21/1,137,745.28
  6. Step 6: Final answer
    x = 857,652.73

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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.