Home / 854,035.84-1,178,686.65-491,452.30

Finding the Fourth Proportional to 854,035.84, 1,178,686.65 and 491,452.30

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Solution

The fourth proportional to 854,035.84, 1,178,686.65 and 491,452.30 is: 678,271.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,035.84 : 1,178,686.65 = 491,452.30 : x
  2. Step 2: Convert to fraction form
    854,035.84/1,178,686.65 = 491,452.30/x
  3. Step 3: Cross multiply
    854,035.84x = 1,178,686.65 × 491,452.30
  4. Step 4: Simplify right side
    854,035.84x = 579,268,265,121.80
  5. Step 5: Solve for x
    x = 579,268,265,121.80/854,035.84
  6. Step 6: Final answer
    x = 678,271.61

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Double scale
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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.