Home / 786,077.60-1,178,979.50-253,598.58

Finding the Fourth Proportional to 786,077.60, 1,178,979.50 and 253,598.58

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Solution

The fourth proportional to 786,077.60, 1,178,979.50 and 253,598.58 is: 380,353.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,077.60 : 1,178,979.50 = 253,598.58 : x
  2. Step 2: Convert to fraction form
    786,077.60/1,178,979.50 = 253,598.58/x
  3. Step 3: Cross multiply
    786,077.60x = 1,178,979.50 × 253,598.58
  4. Step 4: Simplify right side
    786,077.60x = 298,987,527,683.11
  5. Step 5: Solve for x
    x = 298,987,527,683.11/786,077.60
  6. Step 6: Final answer
    x = 380,353.71

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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.