Home / 346,478.20-518,939.70-284,270.20

Finding the Fourth Proportional to 346,478.20, 518,939.70 and 284,270.20

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Solution

The fourth proportional to 346,478.20, 518,939.70 and 284,270.20 is: 425,767.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,478.20 : 518,939.70 = 284,270.20 : x
  2. Step 2: Convert to fraction form
    346,478.20/518,939.70 = 284,270.20/x
  3. Step 3: Cross multiply
    346,478.20x = 518,939.70 × 284,270.20
  4. Step 4: Simplify right side
    346,478.20x = 147,519,092,306.94
  5. Step 5: Solve for x
    x = 147,519,092,306.94/346,478.20
  6. Step 6: Final answer
    x = 425,767.31

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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.