Home / 2,518,931.79-3,778,934.41-813,172.03

Finding the Fourth Proportional to 2,518,931.79, 3,778,934.41 and 813,172.03

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Solution

The fourth proportional to 2,518,931.79, 3,778,934.41 and 813,172.03 is: 1,219,931.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,518,931.79 : 3,778,934.41 = 813,172.03 : x
  2. Step 2: Convert to fraction form
    2,518,931.79/3,778,934.41 = 813,172.03/x
  3. Step 3: Cross multiply
    2,518,931.79x = 3,778,934.41 × 813,172.03
  4. Step 4: Simplify right side
    2,518,931.79x = 3,072,923,756,985.68
  5. Step 5: Solve for x
    x = 3,072,923,756,985.68/2,518,931.79
  6. Step 6: Final answer
    x = 1,219,931.31

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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.