Home / 745,637.13-1,028,991.20-406,105.38

Finding the Fourth Proportional to 745,637.13, 1,028,991.20 and 406,105.38

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Solution

The fourth proportional to 745,637.13, 1,028,991.20 and 406,105.38 is: 560,431.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,637.13 : 1,028,991.20 = 406,105.38 : x
  2. Step 2: Convert to fraction form
    745,637.13/1,028,991.20 = 406,105.38/x
  3. Step 3: Cross multiply
    745,637.13x = 1,028,991.20 × 406,105.38
  4. Step 4: Simplify right side
    745,637.13x = 417,878,860,262.13
  5. Step 5: Solve for x
    x = 417,878,860,262.13/745,637.13
  6. Step 6: Final answer
    x = 560,431.94

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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.