Home / 684,745.10-1,027,117.65-657,188.90

Finding the Fourth Proportional to 684,745.10, 1,027,117.65 and 657,188.90

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Solution

The fourth proportional to 684,745.10, 1,027,117.65 and 657,188.90 is: 985,783.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,745.10 : 1,027,117.65 = 657,188.90 : x
  2. Step 2: Convert to fraction form
    684,745.10/1,027,117.65 = 657,188.90/x
  3. Step 3: Cross multiply
    684,745.10x = 1,027,117.65 × 657,188.90
  4. Step 4: Simplify right side
    684,745.10x = 675,010,318,574.09
  5. Step 5: Solve for x
    x = 675,010,318,574.09/684,745.10
  6. Step 6: Final answer
    x = 985,783.35

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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.