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Finding the Fourth Proportional to 612,016.80, 917,128.80 and 548,836.80

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Solution

The fourth proportional to 612,016.80, 917,128.80 and 548,836.80 is: 822,451.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,016.80 : 917,128.80 = 548,836.80 : x
  2. Step 2: Convert to fraction form
    612,016.80/917,128.80 = 548,836.80/x
  3. Step 3: Cross multiply
    612,016.80x = 917,128.80 × 548,836.80
  4. Step 4: Simplify right side
    612,016.80x = 503,354,035,779.84
  5. Step 5: Solve for x
    x = 503,354,035,779.84/612,016.80
  6. Step 6: Final answer
    x = 822,451.34

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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.