Home / 740,199.96-1,021,475.67-400,668.21

Finding the Fourth Proportional to 740,199.96, 1,021,475.67 and 400,668.21

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Solution

The fourth proportional to 740,199.96, 1,021,475.67 and 400,668.21 is: 552,921.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,199.96 : 1,021,475.67 = 400,668.21 : x
  2. Step 2: Convert to fraction form
    740,199.96/1,021,475.67 = 400,668.21/x
  3. Step 3: Cross multiply
    740,199.96x = 1,021,475.67 × 400,668.21
  4. Step 4: Simplify right side
    740,199.96x = 409,272,828,257.45
  5. Step 5: Solve for x
    x = 409,272,828,257.45/740,199.96
  6. Step 6: Final answer
    x = 552,921.98

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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.