Home / 1,291,981.63-1,937,824.80-345,426.16

Finding the Fourth Proportional to 1,291,981.63, 1,937,824.80 and 345,426.16

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Solution

The fourth proportional to 1,291,981.63, 1,937,824.80 and 345,426.16 is: 518,099.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,981.63 : 1,937,824.80 = 345,426.16 : x
  2. Step 2: Convert to fraction form
    1,291,981.63/1,937,824.80 = 345,426.16/x
  3. Step 3: Cross multiply
    1,291,981.63x = 1,937,824.80 × 345,426.16
  4. Step 4: Simplify right side
    1,291,981.63x = 669,375,379,416.77
  5. Step 5: Solve for x
    x = 669,375,379,416.77/1,291,981.63
  6. Step 6: Final answer
    x = 518,099.77

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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.