Home / 664,840.72-997,623.96-384,904.72

Finding the Fourth Proportional to 664,840.72, 997,623.96 and 384,904.72

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Solution

The fourth proportional to 664,840.72, 997,623.96 and 384,904.72 is: 577,567.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,840.72 : 997,623.96 = 384,904.72 : x
  2. Step 2: Convert to fraction form
    664,840.72/997,623.96 = 384,904.72/x
  3. Step 3: Cross multiply
    664,840.72x = 997,623.96 × 384,904.72
  4. Step 4: Simplify right side
    664,840.72x = 383,990,170,989.09
  5. Step 5: Solve for x
    x = 383,990,170,989.09/664,840.72
  6. Step 6: Final answer
    x = 577,567.17

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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.