Home / 939,029.68-1,408,656.29-299,108.72

Finding the Fourth Proportional to 939,029.68, 1,408,656.29 and 299,108.72

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Solution

The fourth proportional to 939,029.68, 1,408,656.29 and 299,108.72 is: 448,698.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,029.68 : 1,408,656.29 = 299,108.72 : x
  2. Step 2: Convert to fraction form
    939,029.68/1,408,656.29 = 299,108.72/x
  3. Step 3: Cross multiply
    939,029.68x = 1,408,656.29 × 299,108.72
  4. Step 4: Simplify right side
    939,029.68x = 421,341,381,847.95
  5. Step 5: Solve for x
    x = 421,341,381,847.95/939,029.68
  6. Step 6: Final answer
    x = 448,698.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.