Home / 980,638.80-1,470,180.60-537,406.80

Finding the Fourth Proportional to 980,638.80, 1,470,180.60 and 537,406.80

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Solution

The fourth proportional to 980,638.80, 1,470,180.60 and 537,406.80 is: 805,684.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,638.80 : 1,470,180.60 = 537,406.80 : x
  2. Step 2: Convert to fraction form
    980,638.80/1,470,180.60 = 537,406.80/x
  3. Step 3: Cross multiply
    980,638.80x = 1,470,180.60 × 537,406.80
  4. Step 4: Simplify right side
    980,638.80x = 790,085,051,668.08
  5. Step 5: Solve for x
    x = 790,085,051,668.08/980,638.80
  6. Step 6: Final answer
    x = 805,684.06

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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.