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Finding the Fourth Proportional to 679,430.82, 937,626.45 and 373,520.04

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Solution

The fourth proportional to 679,430.82, 937,626.45 and 373,520.04 is: 515,464.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,430.82 : 937,626.45 = 373,520.04 : x
  2. Step 2: Convert to fraction form
    679,430.82/937,626.45 = 373,520.04/x
  3. Step 3: Cross multiply
    679,430.82x = 937,626.45 × 373,520.04
  4. Step 4: Simplify right side
    679,430.82x = 350,222,269,109.06
  5. Step 5: Solve for x
    x = 350,222,269,109.06/679,430.82
  6. Step 6: Final answer
    x = 515,464.21

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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.