Home / 899,615.84-1,242,399.48-778,174.16

Finding the Fourth Proportional to 899,615.84, 1,242,399.48 and 778,174.16

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Solution

The fourth proportional to 899,615.84, 1,242,399.48 and 778,174.16 is: 1,074,684.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,615.84 : 1,242,399.48 = 778,174.16 : x
  2. Step 2: Convert to fraction form
    899,615.84/1,242,399.48 = 778,174.16/x
  3. Step 3: Cross multiply
    899,615.84x = 1,242,399.48 × 778,174.16
  4. Step 4: Simplify right side
    899,615.84x = 966,803,171,733.44
  5. Step 5: Solve for x
    x = 966,803,171,733.44/899,615.84
  6. Step 6: Final answer
    x = 1,074,684.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.