Home / 1,292,045.34-1,937,920.11-345,489.87

Finding the Fourth Proportional to 1,292,045.34, 1,937,920.11 and 345,489.87

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Solution

The fourth proportional to 1,292,045.34, 1,937,920.11 and 345,489.87 is: 518,195.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,045.34 : 1,937,920.11 = 345,489.87 : x
  2. Step 2: Convert to fraction form
    1,292,045.34/1,937,920.11 = 345,489.87/x
  3. Step 3: Cross multiply
    1,292,045.34x = 1,937,920.11 × 345,489.87
  4. Step 4: Simplify right side
    1,292,045.34x = 669,531,772,845.90
  5. Step 5: Solve for x
    x = 669,531,772,845.90/1,292,045.34
  6. Step 6: Final answer
    x = 518,195.26

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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.