Home / 697,982.46-963,239.19-387,898.11

Finding the Fourth Proportional to 697,982.46, 963,239.19 and 387,898.11

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Solution

The fourth proportional to 697,982.46, 963,239.19 and 387,898.11 is: 535,312.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,982.46 : 963,239.19 = 387,898.11 : x
  2. Step 2: Convert to fraction form
    697,982.46/963,239.19 = 387,898.11/x
  3. Step 3: Cross multiply
    697,982.46x = 963,239.19 × 387,898.11
  4. Step 4: Simplify right side
    697,982.46x = 373,638,664,406.21
  5. Step 5: Solve for x
    x = 373,638,664,406.21/697,982.46
  6. Step 6: Final answer
    x = 535,312.40

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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.