Home / 740,141.69-1,021,398.60-400,609.94

Finding the Fourth Proportional to 740,141.69, 1,021,398.60 and 400,609.94

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Solution

The fourth proportional to 740,141.69, 1,021,398.60 and 400,609.94 is: 552,843.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,141.69 : 1,021,398.60 = 400,609.94 : x
  2. Step 2: Convert to fraction form
    740,141.69/1,021,398.60 = 400,609.94/x
  3. Step 3: Cross multiply
    740,141.69x = 1,021,398.60 × 400,609.94
  4. Step 4: Simplify right side
    740,141.69x = 409,182,426,755.09
  5. Step 5: Solve for x
    x = 409,182,426,755.09/740,141.69
  6. Step 6: Final answer
    x = 552,843.37

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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.