Home / 945,522.25-1,304,820.71-515,804.11

Finding the Fourth Proportional to 945,522.25, 1,304,820.71 and 515,804.11

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Solution

The fourth proportional to 945,522.25, 1,304,820.71 and 515,804.11 is: 711,809.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,522.25 : 1,304,820.71 = 515,804.11 : x
  2. Step 2: Convert to fraction form
    945,522.25/1,304,820.71 = 515,804.11/x
  3. Step 3: Cross multiply
    945,522.25x = 1,304,820.71 × 515,804.11
  4. Step 4: Simplify right side
    945,522.25x = 673,031,882,452.10
  5. Step 5: Solve for x
    x = 673,031,882,452.10/945,522.25
  6. Step 6: Final answer
    x = 711,809.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.