Home / 555,134.16-766,085.04-300,485.28

Finding the Fourth Proportional to 555,134.16, 766,085.04 and 300,485.28

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Solution

The fourth proportional to 555,134.16, 766,085.04 and 300,485.28 is: 414,669.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,134.16 : 766,085.04 = 300,485.28 : x
  2. Step 2: Convert to fraction form
    555,134.16/766,085.04 = 300,485.28/x
  3. Step 3: Cross multiply
    555,134.16x = 766,085.04 × 300,485.28
  4. Step 4: Simplify right side
    555,134.16x = 230,197,277,748.21
  5. Step 5: Solve for x
    x = 230,197,277,748.21/555,134.16
  6. Step 6: Final answer
    x = 414,669.63

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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.