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Finding the Fourth Proportional to 617,927.70, 926,373.15 and 322,439.70

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Solution

The fourth proportional to 617,927.70, 926,373.15 and 322,439.70 is: 483,389.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,927.70 : 926,373.15 = 322,439.70 : x
  2. Step 2: Convert to fraction form
    617,927.70/926,373.15 = 322,439.70/x
  3. Step 3: Cross multiply
    617,927.70x = 926,373.15 × 322,439.70
  4. Step 4: Simplify right side
    617,927.70x = 298,699,480,574.06
  5. Step 5: Solve for x
    x = 298,699,480,574.06/617,927.70
  6. Step 6: Final answer
    x = 483,389.04

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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.