Home / 915,525-1,263,439.70-507,644.04

Finding the Fourth Proportional to 915,525, 1,263,439.70 and 507,644.04

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Solution

The fourth proportional to 915,525, 1,263,439.70 and 507,644.04 is: 700,557.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,525 : 1,263,439.70 = 507,644.04 : x
  2. Step 2: Convert to fraction form
    915,525/1,263,439.70 = 507,644.04/x
  3. Step 3: Cross multiply
    915,525x = 1,263,439.70 × 507,644.04
  4. Step 4: Simplify right side
    915,525x = 641,377,631,066.17
  5. Step 5: Solve for x
    x = 641,377,631,066.17/915,525
  6. Step 6: Final answer
    x = 700,557.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.