Home / 1,292,039.77-1,937,911.78-345,484.30

Finding the Fourth Proportional to 1,292,039.77, 1,937,911.78 and 345,484.30

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Solution

The fourth proportional to 1,292,039.77, 1,937,911.78 and 345,484.30 is: 518,186.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,039.77 : 1,937,911.78 = 345,484.30 : x
  2. Step 2: Convert to fraction form
    1,292,039.77/1,937,911.78 = 345,484.30/x
  3. Step 3: Cross multiply
    1,292,039.77x = 1,937,911.78 × 345,484.30
  4. Step 4: Simplify right side
    1,292,039.77x = 669,518,094,775.05
  5. Step 5: Solve for x
    x = 669,518,094,775.05/1,292,039.77
  6. Step 6: Final answer
    x = 518,186.91

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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.