Home / 678,810.77-1,018,200.38-341,760.93

Finding the Fourth Proportional to 678,810.77, 1,018,200.38 and 341,760.93

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Solution

The fourth proportional to 678,810.77, 1,018,200.38 and 341,760.93 is: 512,633.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,810.77 : 1,018,200.38 = 341,760.93 : x
  2. Step 2: Convert to fraction form
    678,810.77/1,018,200.38 = 341,760.93/x
  3. Step 3: Cross multiply
    678,810.77x = 1,018,200.38 × 341,760.93
  4. Step 4: Simplify right side
    678,810.77x = 347,981,107,086.35
  5. Step 5: Solve for x
    x = 347,981,107,086.35/678,810.77
  6. Step 6: Final answer
    x = 512,633.45

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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.