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Finding the Fourth Proportional to 665,117.30, 997,675.95 and 384,490.10

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Solution

The fourth proportional to 665,117.30, 997,675.95 and 384,490.10 is: 576,735.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,117.30 : 997,675.95 = 384,490.10 : x
  2. Step 2: Convert to fraction form
    665,117.30/997,675.95 = 384,490.10/x
  3. Step 3: Cross multiply
    665,117.30x = 997,675.95 × 384,490.10
  4. Step 4: Simplify right side
    665,117.30x = 383,596,525,783.10
  5. Step 5: Solve for x
    x = 383,596,525,783.10/665,117.30
  6. Step 6: Final answer
    x = 576,735.15

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Similar ratio
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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.