Home / 747,361.81-1,031,381.09-407,851.93

Finding the Fourth Proportional to 747,361.81, 1,031,381.09 and 407,851.93

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Solution

The fourth proportional to 747,361.81, 1,031,381.09 and 407,851.93 is: 562,847.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,361.81 : 1,031,381.09 = 407,851.93 : x
  2. Step 2: Convert to fraction form
    747,361.81/1,031,381.09 = 407,851.93/x
  3. Step 3: Cross multiply
    747,361.81x = 1,031,381.09 × 407,851.93
  4. Step 4: Simplify right side
    747,361.81x = 420,650,768,122.00
  5. Step 5: Solve for x
    x = 420,650,768,122.00/747,361.81
  6. Step 6: Final answer
    x = 562,847.56

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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.