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Finding the Fourth Proportional to 457,157.39, 630,740.72 and 295,756.79

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Solution

The fourth proportional to 457,157.39, 630,740.72 and 295,756.79 is: 408,056.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,157.39 : 630,740.72 = 295,756.79 : x
  2. Step 2: Convert to fraction form
    457,157.39/630,740.72 = 295,756.79/x
  3. Step 3: Cross multiply
    457,157.39x = 630,740.72 × 295,756.79
  4. Step 4: Simplify right side
    457,157.39x = 186,545,848,255.18
  5. Step 5: Solve for x
    x = 186,545,848,255.18/457,157.39
  6. Step 6: Final answer
    x = 408,056.08

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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.