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Finding the Fourth Proportional to 617,817.20, 927,244.20 and 302,543.60

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Solution

The fourth proportional to 617,817.20, 927,244.20 and 302,543.60 is: 454,069.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,817.20 : 927,244.20 = 302,543.60 : x
  2. Step 2: Convert to fraction form
    617,817.20/927,244.20 = 302,543.60/x
  3. Step 3: Cross multiply
    617,817.20x = 927,244.20 × 302,543.60
  4. Step 4: Simplify right side
    617,817.20x = 280,531,798,347.12
  5. Step 5: Solve for x
    x = 280,531,798,347.12/617,817.20
  6. Step 6: Final answer
    x = 454,069.26

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1.5x scale

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.