Home / 1,630,903.20-2,250,721.08-905,753.76

Finding the Fourth Proportional to 1,630,903.20, 2,250,721.08 and 905,753.76

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Solution

The fourth proportional to 1,630,903.20, 2,250,721.08 and 905,753.76 is: 1,249,981.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,630,903.20 : 2,250,721.08 = 905,753.76 : x
  2. Step 2: Convert to fraction form
    1,630,903.20/2,250,721.08 = 905,753.76/x
  3. Step 3: Cross multiply
    1,630,903.20x = 2,250,721.08 × 905,753.76
  4. Step 4: Simplify right side
    1,630,903.20x = 2,038,599,080,921.26
  5. Step 5: Solve for x
    x = 2,038,599,080,921.26/1,630,903.20
  6. Step 6: Final answer
    x = 1,249,981.65

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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.