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Finding the Fourth Proportional to 489,525.86, 734,155.08 and 134,455.46

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Solution

The fourth proportional to 489,525.86, 734,155.08 and 134,455.46 is: 201,646.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,525.86 : 734,155.08 = 134,455.46 : x
  2. Step 2: Convert to fraction form
    489,525.86/734,155.08 = 134,455.46/x
  3. Step 3: Cross multiply
    489,525.86x = 734,155.08 × 134,455.46
  4. Step 4: Simplify right side
    489,525.86x = 98,711,158,992.74
  5. Step 5: Solve for x
    x = 98,711,158,992.74/489,525.86
  6. Step 6: Final answer
    x = 201,646.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.