Home / 678,114.10-1,018,337.55-479,826.10

Finding the Fourth Proportional to 678,114.10, 1,018,337.55 and 479,826.10

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Solution

The fourth proportional to 678,114.10, 1,018,337.55 and 479,826.10 is: 720,564.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,114.10 : 1,018,337.55 = 479,826.10 : x
  2. Step 2: Convert to fraction form
    678,114.10/1,018,337.55 = 479,826.10/x
  3. Step 3: Cross multiply
    678,114.10x = 1,018,337.55 × 479,826.10
  4. Step 4: Simplify right side
    678,114.10x = 488,624,935,100.06
  5. Step 5: Solve for x
    x = 488,624,935,100.06/678,114.10
  6. Step 6: Final answer
    x = 720,564.48

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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.