Home / 818,848.46-1,228,653.12-313,242.30

Finding the Fourth Proportional to 818,848.46, 1,228,653.12 and 313,242.30

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Solution

The fourth proportional to 818,848.46, 1,228,653.12 and 313,242.30 is: 470,008.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,848.46 : 1,228,653.12 = 313,242.30 : x
  2. Step 2: Convert to fraction form
    818,848.46/1,228,653.12 = 313,242.30/x
  3. Step 3: Cross multiply
    818,848.46x = 1,228,653.12 × 313,242.30
  4. Step 4: Simplify right side
    818,848.46x = 384,866,129,210.98
  5. Step 5: Solve for x
    x = 384,866,129,210.98/818,848.46
  6. Step 6: Final answer
    x = 470,008.98

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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.