Home / 851,702.80-1,277,467.80-290,729.20

Finding the Fourth Proportional to 851,702.80, 1,277,467.80 and 290,729.20

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Solution

The fourth proportional to 851,702.80, 1,277,467.80 and 290,729.20 is: 436,064.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,702.80 : 1,277,467.80 = 290,729.20 : x
  2. Step 2: Convert to fraction form
    851,702.80/1,277,467.80 = 290,729.20/x
  3. Step 3: Cross multiply
    851,702.80x = 1,277,467.80 × 290,729.20
  4. Step 4: Simplify right side
    851,702.80x = 371,397,191,519.76
  5. Step 5: Solve for x
    x = 371,397,191,519.76/851,702.80
  6. Step 6: Final answer
    x = 436,064.31

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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.