Home / 786,835.32-1,178,259.96-487,899.72

Finding the Fourth Proportional to 786,835.32, 1,178,259.96 and 487,899.72

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Solution

The fourth proportional to 786,835.32, 1,178,259.96 and 487,899.72 is: 730,613.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,835.32 : 1,178,259.96 = 487,899.72 : x
  2. Step 2: Convert to fraction form
    786,835.32/1,178,259.96 = 487,899.72/x
  3. Step 3: Cross multiply
    786,835.32x = 1,178,259.96 × 487,899.72
  4. Step 4: Simplify right side
    786,835.32x = 574,872,704,571.21
  5. Step 5: Solve for x
    x = 574,872,704,571.21/786,835.32
  6. Step 6: Final answer
    x = 730,613.75

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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.