Home / 678,498.13-1,018,213.76-235,266.13

Finding the Fourth Proportional to 678,498.13, 1,018,213.76 and 235,266.13

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Solution

The fourth proportional to 678,498.13, 1,018,213.76 and 235,266.13 is: 353,060.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,498.13 : 1,018,213.76 = 235,266.13 : x
  2. Step 2: Convert to fraction form
    678,498.13/1,018,213.76 = 235,266.13/x
  3. Step 3: Cross multiply
    678,498.13x = 1,018,213.76 × 235,266.13
  4. Step 4: Simplify right side
    678,498.13x = 239,551,210,827.95
  5. Step 5: Solve for x
    x = 239,551,210,827.95/678,498.13
  6. Step 6: Final answer
    x = 353,060.97

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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.