Home / 915,553.89-1,263,464.99-507,660.77

Finding the Fourth Proportional to 915,553.89, 1,263,464.99 and 507,660.77

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Solution

The fourth proportional to 915,553.89, 1,263,464.99 and 507,660.77 is: 700,572.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,553.89 : 1,263,464.99 = 507,660.77 : x
  2. Step 2: Convert to fraction form
    915,553.89/1,263,464.99 = 507,660.77/x
  3. Step 3: Cross multiply
    915,553.89x = 1,263,464.99 × 507,660.77
  4. Step 4: Simplify right side
    915,553.89x = 641,411,600,835.81
  5. Step 5: Solve for x
    x = 641,411,600,835.81/915,553.89
  6. Step 6: Final answer
    x = 700,572.20

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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.