Home / 740,140.68-1,021,397.22-400,608.94

Finding the Fourth Proportional to 740,140.68, 1,021,397.22 and 400,608.94

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Solution

The fourth proportional to 740,140.68, 1,021,397.22 and 400,608.94 is: 552,842.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,140.68 : 1,021,397.22 = 400,608.94 : x
  2. Step 2: Convert to fraction form
    740,140.68/1,021,397.22 = 400,608.94/x
  3. Step 3: Cross multiply
    740,140.68x = 1,021,397.22 × 400,608.94
  4. Step 4: Simplify right side
    740,140.68x = 409,180,857,623.15
  5. Step 5: Solve for x
    x = 409,180,857,623.15/740,140.68
  6. Step 6: Final answer
    x = 552,842.01

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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.