Home / 688,664.70-1,032,997.05-578,439.90

Finding the Fourth Proportional to 688,664.70, 1,032,997.05 and 578,439.90

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Solution

The fourth proportional to 688,664.70, 1,032,997.05 and 578,439.90 is: 867,659.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,664.70 : 1,032,997.05 = 578,439.90 : x
  2. Step 2: Convert to fraction form
    688,664.70/1,032,997.05 = 578,439.90/x
  3. Step 3: Cross multiply
    688,664.70x = 1,032,997.05 × 578,439.90
  4. Step 4: Simplify right side
    688,664.70x = 597,526,710,302.30
  5. Step 5: Solve for x
    x = 597,526,710,302.30/688,664.70
  6. Step 6: Final answer
    x = 867,659.85

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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.