Home / 740,399.59-1,021,754.62-400,867.84

Finding the Fourth Proportional to 740,399.59, 1,021,754.62 and 400,867.84

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Solution

The fourth proportional to 740,399.59, 1,021,754.62 and 400,867.84 is: 553,199.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,399.59 : 1,021,754.62 = 400,867.84 : x
  2. Step 2: Convert to fraction form
    740,399.59/1,021,754.62 = 400,867.84/x
  3. Step 3: Cross multiply
    740,399.59x = 1,021,754.62 × 400,867.84
  4. Step 4: Simplify right side
    740,399.59x = 409,588,567,529.42
  5. Step 5: Solve for x
    x = 409,588,567,529.42/740,399.59
  6. Step 6: Final answer
    x = 553,199.34

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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.