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Finding the Fourth Proportional to 617,492.80, 926,239.20 and 302,564.80

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Solution

The fourth proportional to 617,492.80, 926,239.20 and 302,564.80 is: 453,847.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,492.80 : 926,239.20 = 302,564.80 : x
  2. Step 2: Convert to fraction form
    617,492.80/926,239.20 = 302,564.80/x
  3. Step 3: Cross multiply
    617,492.80x = 926,239.20 × 302,564.80
  4. Step 4: Simplify right side
    617,492.80x = 280,247,378,300.16
  5. Step 5: Solve for x
    x = 280,247,378,300.16/617,492.80
  6. Step 6: Final answer
    x = 453,847.20

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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.