Home / 856,527.40-1,284,353.70-316,756.36

Finding the Fourth Proportional to 856,527.40, 1,284,353.70 and 316,756.36

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Solution

The fourth proportional to 856,527.40, 1,284,353.70 and 316,756.36 is: 474,972.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,527.40 : 1,284,353.70 = 316,756.36 : x
  2. Step 2: Convert to fraction form
    856,527.40/1,284,353.70 = 316,756.36/x
  3. Step 3: Cross multiply
    856,527.40x = 1,284,353.70 × 316,756.36
  4. Step 4: Simplify right side
    856,527.40x = 406,827,202,964.53
  5. Step 5: Solve for x
    x = 406,827,202,964.53/856,527.40
  6. Step 6: Final answer
    x = 474,972.78

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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.