Home / 1,292,043.08-1,937,916.74-345,487.61

Finding the Fourth Proportional to 1,292,043.08, 1,937,916.74 and 345,487.61

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Solution

The fourth proportional to 1,292,043.08, 1,937,916.74 and 345,487.61 is: 518,191.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,043.08 : 1,937,916.74 = 345,487.61 : x
  2. Step 2: Convert to fraction form
    1,292,043.08/1,937,916.74 = 345,487.61/x
  3. Step 3: Cross multiply
    1,292,043.08x = 1,937,916.74 × 345,487.61
  4. Step 4: Simplify right side
    1,292,043.08x = 669,526,228,590.10
  5. Step 5: Solve for x
    x = 669,526,228,590.10/1,292,043.08
  6. Step 6: Final answer
    x = 518,191.88

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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.