Home / 1,317,702.80-1,976,554.20-320,430.80

Finding the Fourth Proportional to 1,317,702.80, 1,976,554.20 and 320,430.80

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Solution

The fourth proportional to 1,317,702.80, 1,976,554.20 and 320,430.80 is: 480,646.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317,702.80 : 1,976,554.20 = 320,430.80 : x
  2. Step 2: Convert to fraction form
    1,317,702.80/1,976,554.20 = 320,430.80/x
  3. Step 3: Cross multiply
    1,317,702.80x = 1,976,554.20 × 320,430.80
  4. Step 4: Simplify right side
    1,317,702.80x = 633,348,843,549.36
  5. Step 5: Solve for x
    x = 633,348,843,549.36/1,317,702.80
  6. Step 6: Final answer
    x = 480,646.20

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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.