Home / 570,911.44-786,939.56-387,090.48

Finding the Fourth Proportional to 570,911.44, 786,939.56 and 387,090.48

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Solution

The fourth proportional to 570,911.44, 786,939.56 and 387,090.48 is: 533,562.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,911.44 : 786,939.56 = 387,090.48 : x
  2. Step 2: Convert to fraction form
    570,911.44/786,939.56 = 387,090.48/x
  3. Step 3: Cross multiply
    570,911.44x = 786,939.56 × 387,090.48
  4. Step 4: Simplify right side
    570,911.44x = 304,616,812,011.39
  5. Step 5: Solve for x
    x = 304,616,812,011.39/570,911.44
  6. Step 6: Final answer
    x = 533,562.28

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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.