Home / 1,047,827.04-1,445,371.20-639,742.56

Finding the Fourth Proportional to 1,047,827.04, 1,445,371.20 and 639,742.56

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Solution

The fourth proportional to 1,047,827.04, 1,445,371.20 and 639,742.56 is: 882,460.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,047,827.04 : 1,445,371.20 = 639,742.56 : x
  2. Step 2: Convert to fraction form
    1,047,827.04/1,445,371.20 = 639,742.56/x
  3. Step 3: Cross multiply
    1,047,827.04x = 1,445,371.20 × 639,742.56
  4. Step 4: Simplify right side
    1,047,827.04x = 924,665,471,638.27
  5. Step 5: Solve for x
    x = 924,665,471,638.27/1,047,827.04
  6. Step 6: Final answer
    x = 882,460.02

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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.