Home / 788,319.11-1,087,880.11-425,743.05

Finding the Fourth Proportional to 788,319.11, 1,087,880.11 and 425,743.05

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Solution

The fourth proportional to 788,319.11, 1,087,880.11 and 425,743.05 is: 587,525.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,319.11 : 1,087,880.11 = 425,743.05 : x
  2. Step 2: Convert to fraction form
    788,319.11/1,087,880.11 = 425,743.05/x
  3. Step 3: Cross multiply
    788,319.11x = 1,087,880.11 × 425,743.05
  4. Step 4: Simplify right side
    788,319.11x = 463,157,392,961.60
  5. Step 5: Solve for x
    x = 463,157,392,961.60/788,319.11
  6. Step 6: Final answer
    x = 587,525.26

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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.