Home / 985,698.78-1,360,150.11-555,986.16

Finding the Fourth Proportional to 985,698.78, 1,360,150.11 and 555,986.16

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Solution

The fourth proportional to 985,698.78, 1,360,150.11 and 555,986.16 is: 767,196.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,698.78 : 1,360,150.11 = 555,986.16 : x
  2. Step 2: Convert to fraction form
    985,698.78/1,360,150.11 = 555,986.16/x
  3. Step 3: Cross multiply
    985,698.78x = 1,360,150.11 × 555,986.16
  4. Step 4: Simplify right side
    985,698.78x = 756,224,636,682.48
  5. Step 5: Solve for x
    x = 756,224,636,682.48/985,698.78
  6. Step 6: Final answer
    x = 767,196.48

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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.