Home / 767,476.81-1,059,219.75-445,120.30

Finding the Fourth Proportional to 767,476.81, 1,059,219.75 and 445,120.30

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Solution

The fourth proportional to 767,476.81, 1,059,219.75 and 445,120.30 is: 614,325.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,476.81 : 1,059,219.75 = 445,120.30 : x
  2. Step 2: Convert to fraction form
    767,476.81/1,059,219.75 = 445,120.30/x
  3. Step 3: Cross multiply
    767,476.81x = 1,059,219.75 × 445,120.30
  4. Step 4: Simplify right side
    767,476.81x = 471,480,212,885.93
  5. Step 5: Solve for x
    x = 471,480,212,885.93/767,476.81
  6. Step 6: Final answer
    x = 614,325.03

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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.