Home / 742,573.71-1,112,446.60-422,946.18

Finding the Fourth Proportional to 742,573.71, 1,112,446.60 and 422,946.18

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Solution

The fourth proportional to 742,573.71, 1,112,446.60 and 422,946.18 is: 633,613.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,573.71 : 1,112,446.60 = 422,946.18 : x
  2. Step 2: Convert to fraction form
    742,573.71/1,112,446.60 = 422,946.18/x
  3. Step 3: Cross multiply
    742,573.71x = 1,112,446.60 × 422,946.18
  4. Step 4: Simplify right side
    742,573.71x = 470,505,038,866.62
  5. Step 5: Solve for x
    x = 470,505,038,866.62/742,573.71
  6. Step 6: Final answer
    x = 633,613.92

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1.5x scale

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.