Home / 1,435,543.20-2,153,193.30-438,271.20

Finding the Fourth Proportional to 1,435,543.20, 2,153,193.30 and 438,271.20

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Solution

The fourth proportional to 1,435,543.20, 2,153,193.30 and 438,271.20 is: 657,369.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,435,543.20 : 2,153,193.30 = 438,271.20 : x
  2. Step 2: Convert to fraction form
    1,435,543.20/2,153,193.30 = 438,271.20/x
  3. Step 3: Cross multiply
    1,435,543.20x = 2,153,193.30 × 438,271.20
  4. Step 4: Simplify right side
    1,435,543.20x = 943,682,611,422.96
  5. Step 5: Solve for x
    x = 943,682,611,422.96/1,435,543.20
  6. Step 6: Final answer
    x = 657,369.71

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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.