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Finding the Fourth Proportional to 679,478.40, 937,656.29 and 373,552.57

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Solution

The fourth proportional to 679,478.40, 937,656.29 and 373,552.57 is: 515,489.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,478.40 : 937,656.29 = 373,552.57 : x
  2. Step 2: Convert to fraction form
    679,478.40/937,656.29 = 373,552.57/x
  3. Step 3: Cross multiply
    679,478.40x = 937,656.29 × 373,552.57
  4. Step 4: Simplify right side
    679,478.40x = 350,263,910,350.12
  5. Step 5: Solve for x
    x = 350,263,910,350.12/679,478.40
  6. Step 6: Final answer
    x = 515,489.40

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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.