Home / 770,780.81-1,156,281.48-238,342.91

Finding the Fourth Proportional to 770,780.81, 1,156,281.48 and 238,342.91

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Solution

The fourth proportional to 770,780.81, 1,156,281.48 and 238,342.91 is: 357,548.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,780.81 : 1,156,281.48 = 238,342.91 : x
  2. Step 2: Convert to fraction form
    770,780.81/1,156,281.48 = 238,342.91/x
  3. Step 3: Cross multiply
    770,780.81x = 1,156,281.48 × 238,342.91
  4. Step 4: Simplify right side
    770,780.81x = 275,591,486,940.90
  5. Step 5: Solve for x
    x = 275,591,486,940.90/770,780.81
  6. Step 6: Final answer
    x = 357,548.45

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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.