Home / 742,912.20-1,114,368.30-210,426.30

Finding the Fourth Proportional to 742,912.20, 1,114,368.30 and 210,426.30

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Solution

The fourth proportional to 742,912.20, 1,114,368.30 and 210,426.30 is: 315,639.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,912.20 : 1,114,368.30 = 210,426.30 : x
  2. Step 2: Convert to fraction form
    742,912.20/1,114,368.30 = 210,426.30/x
  3. Step 3: Cross multiply
    742,912.20x = 1,114,368.30 × 210,426.30
  4. Step 4: Simplify right side
    742,912.20x = 234,492,398,206.29
  5. Step 5: Solve for x
    x = 234,492,398,206.29/742,912.20
  6. Step 6: Final answer
    x = 315,639.45

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Similar ratio
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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.