Home / 678,720.48-1,018,065.17-341,670.63

Finding the Fourth Proportional to 678,720.48, 1,018,065.17 and 341,670.63

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Solution

The fourth proportional to 678,720.48, 1,018,065.17 and 341,670.63 is: 512,498.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,720.48 : 1,018,065.17 = 341,670.63 : x
  2. Step 2: Convert to fraction form
    678,720.48/1,018,065.17 = 341,670.63/x
  3. Step 3: Cross multiply
    678,720.48x = 1,018,065.17 × 341,670.63
  4. Step 4: Simplify right side
    678,720.48x = 347,842,968,014.96
  5. Step 5: Solve for x
    x = 347,842,968,014.96/678,720.48
  6. Step 6: Final answer
    x = 512,498.12

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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.