Home / 947,290.60-1,420,244.70-386,036.20

Finding the Fourth Proportional to 947,290.60, 1,420,244.70 and 386,036.20

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Solution

The fourth proportional to 947,290.60, 1,420,244.70 and 386,036.20 is: 578,772.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,290.60 : 1,420,244.70 = 386,036.20 : x
  2. Step 2: Convert to fraction form
    947,290.60/1,420,244.70 = 386,036.20/x
  3. Step 3: Cross multiply
    947,290.60x = 1,420,244.70 × 386,036.20
  4. Step 4: Simplify right side
    947,290.60x = 548,265,867,058.14
  5. Step 5: Solve for x
    x = 548,265,867,058.14/947,290.60
  6. Step 6: Final answer
    x = 578,772.62

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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.