Home / 749,290.81-1,034,019.22-405,124.33

Finding the Fourth Proportional to 749,290.81, 1,034,019.22 and 405,124.33

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Solution

The fourth proportional to 749,290.81, 1,034,019.22 and 405,124.33 is: 559,070.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,290.81 : 1,034,019.22 = 405,124.33 : x
  2. Step 2: Convert to fraction form
    749,290.81/1,034,019.22 = 405,124.33/x
  3. Step 3: Cross multiply
    749,290.81x = 1,034,019.22 × 405,124.33
  4. Step 4: Simplify right side
    749,290.81x = 418,906,343,709.62
  5. Step 5: Solve for x
    x = 418,906,343,709.62/749,290.81
  6. Step 6: Final answer
    x = 559,070.44

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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.