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Finding the Fourth Proportional to 609,904.36, 841,712.34 and 368,245.72

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Solution

The fourth proportional to 609,904.36, 841,712.34 and 368,245.72 is: 508,205.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,904.36 : 841,712.34 = 368,245.72 : x
  2. Step 2: Convert to fraction form
    609,904.36/841,712.34 = 368,245.72/x
  3. Step 3: Cross multiply
    609,904.36x = 841,712.34 × 368,245.72
  4. Step 4: Simplify right side
    609,904.36x = 309,956,966,676.19
  5. Step 5: Solve for x
    x = 309,956,966,676.19/609,904.36
  6. Step 6: Final answer
    x = 508,205.85

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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.