Home / 748,811.40-1,123,362.90-322,346.40

Finding the Fourth Proportional to 748,811.40, 1,123,362.90 and 322,346.40

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Solution

The fourth proportional to 748,811.40, 1,123,362.90 and 322,346.40 is: 483,582.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,811.40 : 1,123,362.90 = 322,346.40 : x
  2. Step 2: Convert to fraction form
    748,811.40/1,123,362.90 = 322,346.40/x
  3. Step 3: Cross multiply
    748,811.40x = 1,123,362.90 × 322,346.40
  4. Step 4: Simplify right side
    748,811.40x = 362,111,986,708.56
  5. Step 5: Solve for x
    x = 362,111,986,708.56/748,811.40
  6. Step 6: Final answer
    x = 483,582.36

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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.