Home / 856,079.15-1,284,203.64-316,476.80

Finding the Fourth Proportional to 856,079.15, 1,284,203.64 and 316,476.80

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Solution

The fourth proportional to 856,079.15, 1,284,203.64 and 316,476.80 is: 474,746.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,079.15 : 1,284,203.64 = 316,476.80 : x
  2. Step 2: Convert to fraction form
    856,079.15/1,284,203.64 = 316,476.80/x
  3. Step 3: Cross multiply
    856,079.15x = 1,284,203.64 × 316,476.80
  4. Step 4: Simplify right side
    856,079.15x = 406,420,652,114.53
  5. Step 5: Solve for x
    x = 406,420,652,114.53/856,079.15
  6. Step 6: Final answer
    x = 474,746.59

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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.