Home / 740,108-1,021,349.04-400,579.04

Finding the Fourth Proportional to 740,108, 1,021,349.04 and 400,579.04

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Solution

The fourth proportional to 740,108, 1,021,349.04 and 400,579.04 is: 552,799.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,108 : 1,021,349.04 = 400,579.04 : x
  2. Step 2: Convert to fraction form
    740,108/1,021,349.04 = 400,579.04/x
  3. Step 3: Cross multiply
    740,108x = 1,021,349.04 × 400,579.04
  4. Step 4: Simplify right side
    740,108x = 409,131,017,948.12
  5. Step 5: Solve for x
    x = 409,131,017,948.12/740,108
  6. Step 6: Final answer
    x = 552,799.08

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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.