Home / 879,560.88-1,319,338.08-318,464.16

Finding the Fourth Proportional to 879,560.88, 1,319,338.08 and 318,464.16

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Solution

The fourth proportional to 879,560.88, 1,319,338.08 and 318,464.16 is: 477,695.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,560.88 : 1,319,338.08 = 318,464.16 : x
  2. Step 2: Convert to fraction form
    879,560.88/1,319,338.08 = 318,464.16/x
  3. Step 3: Cross multiply
    879,560.88x = 1,319,338.08 × 318,464.16
  4. Step 4: Simplify right side
    879,560.88x = 420,161,893,403.21
  5. Step 5: Solve for x
    x = 420,161,893,403.21/879,560.88
  6. Step 6: Final answer
    x = 477,695.07

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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.