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Finding the Fourth Proportional to 695,210, 959,389.80 and 377,258

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Solution

The fourth proportional to 695,210, 959,389.80 and 377,258 is: 520,616.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,210 : 959,389.80 = 377,258 : x
  2. Step 2: Convert to fraction form
    695,210/959,389.80 = 377,258/x
  3. Step 3: Cross multiply
    695,210x = 959,389.80 × 377,258
  4. Step 4: Simplify right side
    695,210x = 361,937,477,168.40
  5. Step 5: Solve for x
    x = 361,937,477,168.40/695,210
  6. Step 6: Final answer
    x = 520,616.04

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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.