Home / 830,721.80-1,246,389.90-800,001.80

Finding the Fourth Proportional to 830,721.80, 1,246,389.90 and 800,001.80

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Solution

The fourth proportional to 830,721.80, 1,246,389.90 and 800,001.80 is: 1,200,298.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,721.80 : 1,246,389.90 = 800,001.80 : x
  2. Step 2: Convert to fraction form
    830,721.80/1,246,389.90 = 800,001.80/x
  3. Step 3: Cross multiply
    830,721.80x = 1,246,389.90 × 800,001.80
  4. Step 4: Simplify right side
    830,721.80x = 997,114,163,501.82
  5. Step 5: Solve for x
    x = 997,114,163,501.82/830,721.80
  6. Step 6: Final answer
    x = 1,200,298.54

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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.