Home / 510,815.48-766,343.28-155,829.56

Finding the Fourth Proportional to 510,815.48, 766,343.28 and 155,829.56

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Solution

The fourth proportional to 510,815.48, 766,343.28 and 155,829.56 is: 233,780.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,815.48 : 766,343.28 = 155,829.56 : x
  2. Step 2: Convert to fraction form
    510,815.48/766,343.28 = 155,829.56/x
  3. Step 3: Cross multiply
    510,815.48x = 766,343.28 × 155,829.56
  4. Step 4: Simplify right side
    510,815.48x = 119,418,936,131.36
  5. Step 5: Solve for x
    x = 119,418,936,131.36/510,815.48
  6. Step 6: Final answer
    x = 233,780.97

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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.