Home / 1,212,206.80-1,817,872.80-492,246.40

Finding the Fourth Proportional to 1,212,206.80, 1,817,872.80 and 492,246.40

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Solution

The fourth proportional to 1,212,206.80, 1,817,872.80 and 492,246.40 is: 738,191.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,206.80 : 1,817,872.80 = 492,246.40 : x
  2. Step 2: Convert to fraction form
    1,212,206.80/1,817,872.80 = 492,246.40/x
  3. Step 3: Cross multiply
    1,212,206.80x = 1,817,872.80 × 492,246.40
  4. Step 4: Simplify right side
    1,212,206.80x = 894,841,341,457.92
  5. Step 5: Solve for x
    x = 894,841,341,457.92/1,212,206.80
  6. Step 6: Final answer
    x = 738,191.98

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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.