Home / 742,866.66-1,111,817.11-422,932.64

Finding the Fourth Proportional to 742,866.66, 1,111,817.11 and 422,932.64

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Solution

The fourth proportional to 742,866.66, 1,111,817.11 and 422,932.64 is: 632,985.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,866.66 : 1,111,817.11 = 422,932.64 : x
  2. Step 2: Convert to fraction form
    742,866.66/1,111,817.11 = 422,932.64/x
  3. Step 3: Cross multiply
    742,866.66x = 1,111,817.11 × 422,932.64
  4. Step 4: Simplify right side
    742,866.66x = 470,223,750,667.38
  5. Step 5: Solve for x
    x = 470,223,750,667.38/742,866.66
  6. Step 6: Final answer
    x = 632,985.40

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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.