Home / 1,299,430.74-1,949,279.78-490,496.54

Finding the Fourth Proportional to 1,299,430.74, 1,949,279.78 and 490,496.54

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Solution

The fourth proportional to 1,299,430.74, 1,949,279.78 and 490,496.54 is: 735,795.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,430.74 : 1,949,279.78 = 490,496.54 : x
  2. Step 2: Convert to fraction form
    1,299,430.74/1,949,279.78 = 490,496.54/x
  3. Step 3: Cross multiply
    1,299,430.74x = 1,949,279.78 × 490,496.54
  4. Step 4: Simplify right side
    1,299,430.74x = 956,114,975,383.08
  5. Step 5: Solve for x
    x = 956,114,975,383.08/1,299,430.74
  6. Step 6: Final answer
    x = 735,795.26

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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.