Home / 446,430.40-615,736.34-310,396.26

Finding the Fourth Proportional to 446,430.40, 615,736.34 and 310,396.26

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Solution

The fourth proportional to 446,430.40, 615,736.34 and 310,396.26 is: 428,112.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,430.40 : 615,736.34 = 310,396.26 : x
  2. Step 2: Convert to fraction form
    446,430.40/615,736.34 = 310,396.26/x
  3. Step 3: Cross multiply
    446,430.40x = 615,736.34 × 310,396.26
  4. Step 4: Simplify right side
    446,430.40x = 191,122,257,082.09
  5. Step 5: Solve for x
    x = 191,122,257,082.09/446,430.40
  6. Step 6: Final answer
    x = 428,112.10

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1.5x scale

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.