Home / 770,785.69-1,156,288.80-238,347.78

Finding the Fourth Proportional to 770,785.69, 1,156,288.80 and 238,347.78

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Solution

The fourth proportional to 770,785.69, 1,156,288.80 and 238,347.78 is: 357,555.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,785.69 : 1,156,288.80 = 238,347.78 : x
  2. Step 2: Convert to fraction form
    770,785.69/1,156,288.80 = 238,347.78/x
  3. Step 3: Cross multiply
    770,785.69x = 1,156,288.80 × 238,347.78
  4. Step 4: Simplify right side
    770,785.69x = 275,598,868,518.86
  5. Step 5: Solve for x
    x = 275,598,868,518.86/770,785.69
  6. Step 6: Final answer
    x = 357,555.77

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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.