Home / 780,063.80-1,170,095.70-425,769.80

Finding the Fourth Proportional to 780,063.80, 1,170,095.70 and 425,769.80

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Solution

The fourth proportional to 780,063.80, 1,170,095.70 and 425,769.80 is: 638,654.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,063.80 : 1,170,095.70 = 425,769.80 : x
  2. Step 2: Convert to fraction form
    780,063.80/1,170,095.70 = 425,769.80/x
  3. Step 3: Cross multiply
    780,063.80x = 1,170,095.70 × 425,769.80
  4. Step 4: Simplify right side
    780,063.80x = 498,191,412,169.86
  5. Step 5: Solve for x
    x = 498,191,412,169.86/780,063.80
  6. Step 6: Final answer
    x = 638,654.70

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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.