Home / 786,057.40-1,178,502.90-253,271.80

Finding the Fourth Proportional to 786,057.40, 1,178,502.90 and 253,271.80

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Solution

The fourth proportional to 786,057.40, 1,178,502.90 and 253,271.80 is: 379,719.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,057.40 : 1,178,502.90 = 253,271.80 : x
  2. Step 2: Convert to fraction form
    786,057.40/1,178,502.90 = 253,271.80/x
  3. Step 3: Cross multiply
    786,057.40x = 1,178,502.90 × 253,271.80
  4. Step 4: Simplify right side
    786,057.40x = 298,481,550,788.22
  5. Step 5: Solve for x
    x = 298,481,550,788.22/786,057.40
  6. Step 6: Final answer
    x = 379,719.79

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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.