Home / 830,020.80-1,244,047.05-745,383.90

Finding the Fourth Proportional to 830,020.80, 1,244,047.05 and 745,383.90

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Solution

The fourth proportional to 830,020.80, 1,244,047.05 and 745,383.90 is: 1,117,192.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,020.80 : 1,244,047.05 = 745,383.90 : x
  2. Step 2: Convert to fraction form
    830,020.80/1,244,047.05 = 745,383.90/x
  3. Step 3: Cross multiply
    830,020.80x = 1,244,047.05 × 745,383.90
  4. Step 4: Simplify right side
    830,020.80x = 927,292,641,912.50
  5. Step 5: Solve for x
    x = 927,292,641,912.50/830,020.80
  6. Step 6: Final answer
    x = 1,117,192.05

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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.