Home / 742,086.36-1,113,038.82-315,793.49

Finding the Fourth Proportional to 742,086.36, 1,113,038.82 and 315,793.49

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Solution

The fourth proportional to 742,086.36, 1,113,038.82 and 315,793.49 is: 473,651.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,086.36 : 1,113,038.82 = 315,793.49 : x
  2. Step 2: Convert to fraction form
    742,086.36/1,113,038.82 = 315,793.49/x
  3. Step 3: Cross multiply
    742,086.36x = 1,113,038.82 × 315,793.49
  4. Step 4: Simplify right side
    742,086.36x = 351,490,407,908.09
  5. Step 5: Solve for x
    x = 351,490,407,908.09/742,086.36
  6. Step 6: Final answer
    x = 473,651.62

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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.