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Finding the Fourth Proportional to 612,050.40, 917,443.80 and 275,252.40

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Solution

The fourth proportional to 612,050.40, 917,443.80 and 275,252.40 is: 412,594.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,050.40 : 917,443.80 = 275,252.40 : x
  2. Step 2: Convert to fraction form
    612,050.40/917,443.80 = 275,252.40/x
  3. Step 3: Cross multiply
    612,050.40x = 917,443.80 × 275,252.40
  4. Step 4: Simplify right side
    612,050.40x = 252,528,607,815.12
  5. Step 5: Solve for x
    x = 252,528,607,815.12/612,050.40
  6. Step 6: Final answer
    x = 412,594.47

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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.