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Finding the Fourth Proportional to 978,058.60, 1,467,087.90 and 971,837.80

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Solution

The fourth proportional to 978,058.60, 1,467,087.90 and 971,837.80 is: 1,457,756.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,058.60 : 1,467,087.90 = 971,837.80 : x
  2. Step 2: Convert to fraction form
    978,058.60/1,467,087.90 = 971,837.80/x
  3. Step 3: Cross multiply
    978,058.60x = 1,467,087.90 × 971,837.80
  4. Step 4: Simplify right side
    978,058.60x = 1,425,771,477,142.62
  5. Step 5: Solve for x
    x = 1,425,771,477,142.62/978,058.60
  6. Step 6: Final answer
    x = 1,457,756.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.