Home / 786,375.60-1,180,438.20-432,081.60

Finding the Fourth Proportional to 786,375.60, 1,180,438.20 and 432,081.60

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Solution

The fourth proportional to 786,375.60, 1,180,438.20 and 432,081.60 is: 648,603.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,375.60 : 1,180,438.20 = 432,081.60 : x
  2. Step 2: Convert to fraction form
    786,375.60/1,180,438.20 = 432,081.60/x
  3. Step 3: Cross multiply
    786,375.60x = 1,180,438.20 × 432,081.60
  4. Step 4: Simplify right side
    786,375.60x = 510,045,626,157.12
  5. Step 5: Solve for x
    x = 510,045,626,157.12/786,375.60
  6. Step 6: Final answer
    x = 648,603.07

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1.5x scale

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.