Home / 1,299,435.78-1,949,287.38-490,501.54

Finding the Fourth Proportional to 1,299,435.78, 1,949,287.38 and 490,501.54

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Solution

The fourth proportional to 1,299,435.78, 1,949,287.38 and 490,501.54 is: 735,802.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,435.78 : 1,949,287.38 = 490,501.54 : x
  2. Step 2: Convert to fraction form
    1,299,435.78/1,949,287.38 = 490,501.54/x
  3. Step 3: Cross multiply
    1,299,435.78x = 1,949,287.38 × 490,501.54
  4. Step 4: Simplify right side
    1,299,435.78x = 956,128,462,389.79
  5. Step 5: Solve for x
    x = 956,128,462,389.79/1,299,435.78
  6. Step 6: Final answer
    x = 735,802.78

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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.