Home / 857,035.08-1,284,646.24-316,944.32

Finding the Fourth Proportional to 857,035.08, 1,284,646.24 and 316,944.32

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Solution

The fourth proportional to 857,035.08, 1,284,646.24 and 316,944.32 is: 475,081.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,035.08 : 1,284,646.24 = 316,944.32 : x
  2. Step 2: Convert to fraction form
    857,035.08/1,284,646.24 = 316,944.32/x
  3. Step 3: Cross multiply
    857,035.08x = 1,284,646.24 × 316,944.32
  4. Step 4: Simplify right side
    857,035.08x = 407,161,331,396.61
  5. Step 5: Solve for x
    x = 407,161,331,396.61/857,035.08
  6. Step 6: Final answer
    x = 475,081.29

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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.