Home / 915,579.18-1,263,501.99-507,709.76

Finding the Fourth Proportional to 915,579.18, 1,263,501.99 and 507,709.76

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Solution

The fourth proportional to 915,579.18, 1,263,501.99 and 507,709.76 is: 700,640.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,579.18 : 1,263,501.99 = 507,709.76 : x
  2. Step 2: Convert to fraction form
    915,579.18/1,263,501.99 = 507,709.76/x
  3. Step 3: Cross multiply
    915,579.18x = 1,263,501.99 × 507,709.76
  4. Step 4: Simplify right side
    915,579.18x = 641,492,285,784.91
  5. Step 5: Solve for x
    x = 641,492,285,784.91/915,579.18
  6. Step 6: Final answer
    x = 700,640.97

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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.