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Finding the Fourth Proportional to 679,073.32, 937,118.05 and 373,168.72

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Solution

The fourth proportional to 679,073.32, 937,118.05 and 373,168.72 is: 514,971.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,073.32 : 937,118.05 = 373,168.72 : x
  2. Step 2: Convert to fraction form
    679,073.32/937,118.05 = 373,168.72/x
  3. Step 3: Cross multiply
    679,073.32x = 937,118.05 × 373,168.72
  4. Step 4: Simplify right side
    679,073.32x = 349,703,143,207.40
  5. Step 5: Solve for x
    x = 349,703,143,207.40/679,073.32
  6. Step 6: Final answer
    x = 514,971.11

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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.