Home / 980,010.80-1,470,059.40-553,540.40

Finding the Fourth Proportional to 980,010.80, 1,470,059.40 and 553,540.40

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Solution

The fourth proportional to 980,010.80, 1,470,059.40 and 553,540.40 is: 830,335.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,010.80 : 1,470,059.40 = 553,540.40 : x
  2. Step 2: Convert to fraction form
    980,010.80/1,470,059.40 = 553,540.40/x
  3. Step 3: Cross multiply
    980,010.80x = 1,470,059.40 × 553,540.40
  4. Step 4: Simplify right side
    980,010.80x = 813,737,268,299.76
  5. Step 5: Solve for x
    x = 813,737,268,299.76/980,010.80
  6. Step 6: Final answer
    x = 830,335.00

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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.