Home / 771,693.89-1,064,745.20-445,106.75

Finding the Fourth Proportional to 771,693.89, 1,064,745.20 and 445,106.75

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Solution

The fourth proportional to 771,693.89, 1,064,745.20 and 445,106.75 is: 614,136.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,693.89 : 1,064,745.20 = 445,106.75 : x
  2. Step 2: Convert to fraction form
    771,693.89/1,064,745.20 = 445,106.75/x
  3. Step 3: Cross multiply
    771,693.89x = 1,064,745.20 × 445,106.75
  4. Step 4: Simplify right side
    771,693.89x = 473,925,271,339.14
  5. Step 5: Solve for x
    x = 473,925,271,339.14/771,693.89
  6. Step 6: Final answer
    x = 614,136.36

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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.