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Finding the Fourth Proportional to 634,015.56, 874,937.34 and 347,547.72

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Solution

The fourth proportional to 634,015.56, 874,937.34 and 347,547.72 is: 479,613.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,015.56 : 874,937.34 = 347,547.72 : x
  2. Step 2: Convert to fraction form
    634,015.56/874,937.34 = 347,547.72/x
  3. Step 3: Cross multiply
    634,015.56x = 874,937.34 × 347,547.72
  4. Step 4: Simplify right side
    634,015.56x = 304,082,477,659.87
  5. Step 5: Solve for x
    x = 304,082,477,659.87/634,015.56
  6. Step 6: Final answer
    x = 479,613.59

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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.