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Finding the Fourth Proportional to 897,420.20, 1,347,005.10 and 448,647.80

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Solution

The fourth proportional to 897,420.20, 1,347,005.10 and 448,647.80 is: 673,409.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,420.20 : 1,347,005.10 = 448,647.80 : x
  2. Step 2: Convert to fraction form
    897,420.20/1,347,005.10 = 448,647.80/x
  3. Step 3: Cross multiply
    897,420.20x = 1,347,005.10 × 448,647.80
  4. Step 4: Simplify right side
    897,420.20x = 604,330,874,703.78
  5. Step 5: Solve for x
    x = 604,330,874,703.78/897,420.20
  6. Step 6: Final answer
    x = 673,409.04

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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.