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Finding the Fourth Proportional to 672,561.90, 928,394.52 and 492,702.34

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Solution

The fourth proportional to 672,561.90, 928,394.52 and 492,702.34 is: 680,119.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,561.90 : 928,394.52 = 492,702.34 : x
  2. Step 2: Convert to fraction form
    672,561.90/928,394.52 = 492,702.34/x
  3. Step 3: Cross multiply
    672,561.90x = 928,394.52 × 492,702.34
  4. Step 4: Simplify right side
    672,561.90x = 457,422,152,447.18
  5. Step 5: Solve for x
    x = 457,422,152,447.18/672,561.90
  6. Step 6: Final answer
    x = 680,119.04

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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.