Home / 740,014.97-1,021,220.66-400,483.22

Finding the Fourth Proportional to 740,014.97, 1,021,220.66 and 400,483.22

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Solution

The fourth proportional to 740,014.97, 1,021,220.66 and 400,483.22 is: 552,666.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,014.97 : 1,021,220.66 = 400,483.22 : x
  2. Step 2: Convert to fraction form
    740,014.97/1,021,220.66 = 400,483.22/x
  3. Step 3: Cross multiply
    740,014.97x = 1,021,220.66 × 400,483.22
  4. Step 4: Simplify right side
    740,014.97x = 408,981,731,138.81
  5. Step 5: Solve for x
    x = 408,981,731,138.81/740,014.97
  6. Step 6: Final answer
    x = 552,666.84

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Double scale
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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.