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Finding the Fourth Proportional to 663,597.45, 915,725.02 and 377,077.77

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Solution

The fourth proportional to 663,597.45, 915,725.02 and 377,077.77 is: 520,344.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,597.45 : 915,725.02 = 377,077.77 : x
  2. Step 2: Convert to fraction form
    663,597.45/915,725.02 = 377,077.77/x
  3. Step 3: Cross multiply
    663,597.45x = 915,725.02 × 377,077.77
  4. Step 4: Simplify right side
    663,597.45x = 345,299,548,474.81
  5. Step 5: Solve for x
    x = 345,299,548,474.81/663,597.45
  6. Step 6: Final answer
    x = 520,344.90

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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.