Home / 2,421,121.02-3,341,018.90-1,388,575.74

Finding the Fourth Proportional to 2,421,121.02, 3,341,018.90 and 1,388,575.74

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Solution

The fourth proportional to 2,421,121.02, 3,341,018.90 and 1,388,575.74 is: 1,916,161.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,421,121.02 : 3,341,018.90 = 1,388,575.74 : x
  2. Step 2: Convert to fraction form
    2,421,121.02/3,341,018.90 = 1,388,575.74/x
  3. Step 3: Cross multiply
    2,421,121.02x = 3,341,018.90 × 1,388,575.74
  4. Step 4: Simplify right side
    2,421,121.02x = 4,639,257,784,478.61
  5. Step 5: Solve for x
    x = 4,639,257,784,478.61/2,421,121.02
  6. Step 6: Final answer
    x = 1,916,161.05

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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.