Home / 782,298.81-1,173,436.57-213,678.96

Finding the Fourth Proportional to 782,298.81, 1,173,436.57 and 213,678.96

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Solution

The fourth proportional to 782,298.81, 1,173,436.57 and 213,678.96 is: 320,515.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,298.81 : 1,173,436.57 = 213,678.96 : x
  2. Step 2: Convert to fraction form
    782,298.81/1,173,436.57 = 213,678.96/x
  3. Step 3: Cross multiply
    782,298.81x = 1,173,436.57 × 213,678.96
  4. Step 4: Simplify right side
    782,298.81x = 250,738,705,903.57
  5. Step 5: Solve for x
    x = 250,738,705,903.57/782,298.81
  6. Step 6: Final answer
    x = 320,515.26

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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.