Home / 740,302.93-1,021,618.42-400,771.18

Finding the Fourth Proportional to 740,302.93, 1,021,618.42 and 400,771.18

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Solution

The fourth proportional to 740,302.93, 1,021,618.42 and 400,771.18 is: 553,064.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,302.93 : 1,021,618.42 = 400,771.18 : x
  2. Step 2: Convert to fraction form
    740,302.93/1,021,618.42 = 400,771.18/x
  3. Step 3: Cross multiply
    740,302.93x = 1,021,618.42 × 400,771.18
  4. Step 4: Simplify right side
    740,302.93x = 409,435,222,222.57
  5. Step 5: Solve for x
    x = 409,435,222,222.57/740,302.93
  6. Step 6: Final answer
    x = 553,064.43

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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.