Home / 678,828.90-1,018,294.38-205,552.38

Finding the Fourth Proportional to 678,828.90, 1,018,294.38 and 205,552.38

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Solution

The fourth proportional to 678,828.90, 1,018,294.38 and 205,552.38 is: 308,344.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,828.90 : 1,018,294.38 = 205,552.38 : x
  2. Step 2: Convert to fraction form
    678,828.90/1,018,294.38 = 205,552.38/x
  3. Step 3: Cross multiply
    678,828.90x = 1,018,294.38 × 205,552.38
  4. Step 4: Simplify right side
    678,828.90x = 209,312,833,349.62
  5. Step 5: Solve for x
    x = 209,312,833,349.62/678,828.90
  6. Step 6: Final answer
    x = 308,344.02

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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.