Home / 749,403.30-1,034,174.76-422,715.22

Finding the Fourth Proportional to 749,403.30, 1,034,174.76 and 422,715.22

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Solution

The fourth proportional to 749,403.30, 1,034,174.76 and 422,715.22 is: 583,345.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,403.30 : 1,034,174.76 = 422,715.22 : x
  2. Step 2: Convert to fraction form
    749,403.30/1,034,174.76 = 422,715.22/x
  3. Step 3: Cross multiply
    749,403.30x = 1,034,174.76 × 422,715.22
  4. Step 4: Simplify right side
    749,403.30x = 437,161,407,021.23
  5. Step 5: Solve for x
    x = 437,161,407,021.23/749,403.30
  6. Step 6: Final answer
    x = 583,345.98

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Double scale
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1.5x scale

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.