Home / 745,403.72-1,115,896.70-460,177.15

Finding the Fourth Proportional to 745,403.72, 1,115,896.70 and 460,177.15

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Solution

The fourth proportional to 745,403.72, 1,115,896.70 and 460,177.15 is: 688,902.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,403.72 : 1,115,896.70 = 460,177.15 : x
  2. Step 2: Convert to fraction form
    745,403.72/1,115,896.70 = 460,177.15/x
  3. Step 3: Cross multiply
    745,403.72x = 1,115,896.70 × 460,177.15
  4. Step 4: Simplify right side
    745,403.72x = 513,510,163,553.41
  5. Step 5: Solve for x
    x = 513,510,163,553.41/745,403.72
  6. Step 6: Final answer
    x = 688,902.07

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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.