Home / 854,405.80-1,281,723.90-293,612.20

Finding the Fourth Proportional to 854,405.80, 1,281,723.90 and 293,612.20

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Solution

The fourth proportional to 854,405.80, 1,281,723.90 and 293,612.20 is: 440,457.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,405.80 : 1,281,723.90 = 293,612.20 : x
  2. Step 2: Convert to fraction form
    854,405.80/1,281,723.90 = 293,612.20/x
  3. Step 3: Cross multiply
    854,405.80x = 1,281,723.90 × 293,612.20
  4. Step 4: Simplify right side
    854,405.80x = 376,329,774,071.58
  5. Step 5: Solve for x
    x = 376,329,774,071.58/854,405.80
  6. Step 6: Final answer
    x = 440,457.89

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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.