Home / 2,012,425.68-3,018,638.50-1,379,420.40

Finding the Fourth Proportional to 2,012,425.68, 3,018,638.50 and 1,379,420.40

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Solution

The fourth proportional to 2,012,425.68, 3,018,638.50 and 1,379,420.40 is: 2,069,130.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,012,425.68 : 3,018,638.50 = 1,379,420.40 : x
  2. Step 2: Convert to fraction form
    2,012,425.68/3,018,638.50 = 1,379,420.40/x
  3. Step 3: Cross multiply
    2,012,425.68x = 3,018,638.50 × 1,379,420.40
  4. Step 4: Simplify right side
    2,012,425.68x = 4,163,971,527,125.40
  5. Step 5: Solve for x
    x = 4,163,971,527,125.40/2,012,425.68
  6. Step 6: Final answer
    x = 2,069,130.59

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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.