Home / 929,850.47-1,395,313.80-390,058.40

Finding the Fourth Proportional to 929,850.47, 1,395,313.80 and 390,058.40

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Solution

The fourth proportional to 929,850.47, 1,395,313.80 and 390,058.40 is: 585,313.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,850.47 : 1,395,313.80 = 390,058.40 : x
  2. Step 2: Convert to fraction form
    929,850.47/1,395,313.80 = 390,058.40/x
  3. Step 3: Cross multiply
    929,850.47x = 1,395,313.80 × 390,058.40
  4. Step 4: Simplify right side
    929,850.47x = 544,253,870,351.49
  5. Step 5: Solve for x
    x = 544,253,870,351.49/929,850.47
  6. Step 6: Final answer
    x = 585,313.33

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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.