Home / 745,663.53-1,029,015.32-406,131.78

Finding the Fourth Proportional to 745,663.53, 1,029,015.32 and 406,131.78

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Solution

The fourth proportional to 745,663.53, 1,029,015.32 and 406,131.78 is: 560,461.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,663.53 : 1,029,015.32 = 406,131.78 : x
  2. Step 2: Convert to fraction form
    745,663.53/1,029,015.32 = 406,131.78/x
  3. Step 3: Cross multiply
    745,663.53x = 1,029,015.32 × 406,131.78
  4. Step 4: Simplify right side
    745,663.53x = 417,915,823,558.87
  5. Step 5: Solve for x
    x = 417,915,823,558.87/745,663.53
  6. Step 6: Final answer
    x = 560,461.67

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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.