Home / 739,991.74-1,021,191.81-400,460.02

Finding the Fourth Proportional to 739,991.74, 1,021,191.81 and 400,460.02

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Solution

The fourth proportional to 739,991.74, 1,021,191.81 and 400,460.02 is: 552,636.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,991.74 : 1,021,191.81 = 400,460.02 : x
  2. Step 2: Convert to fraction form
    739,991.74/1,021,191.81 = 400,460.02/x
  3. Step 3: Cross multiply
    739,991.74x = 1,021,191.81 × 400,460.02
  4. Step 4: Simplify right side
    739,991.74x = 408,946,492,656.44
  5. Step 5: Solve for x
    x = 408,946,492,656.44/739,991.74
  6. Step 6: Final answer
    x = 552,636.56

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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.