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Finding the Fourth Proportional to 945,522, 1,304,820.36 and 515,803.86

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Solution

The fourth proportional to 945,522, 1,304,820.36 and 515,803.86 is: 711,809.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,522 : 1,304,820.36 = 515,803.86 : x
  2. Step 2: Convert to fraction form
    945,522/1,304,820.36 = 515,803.86/x
  3. Step 3: Cross multiply
    945,522x = 1,304,820.36 × 515,803.86
  4. Step 4: Simplify right side
    945,522x = 673,031,378,294.59
  5. Step 5: Solve for x
    x = 673,031,378,294.59/945,522
  6. Step 6: Final answer
    x = 711,809.33

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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.