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Finding the Fourth Proportional to 1,048,354, 1,572,531 and 300,400

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Solution

The fourth proportional to 1,048,354, 1,572,531 and 300,400 is: 450,600

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,048,354 : 1,572,531 = 300,400 : x
  2. Step 2: Convert to fraction form
    1,048,354/1,572,531 = 300,400/x
  3. Step 3: Cross multiply
    1,048,354x = 1,572,531 × 300,400
  4. Step 4: Simplify right side
    1,048,354x = 472,388,312,400
  5. Step 5: Solve for x
    x = 472,388,312,400/1,048,354
  6. Step 6: Final answer
    x = 450,600

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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.