Home / 863,424.60-1,295,136.90-808,128.60

Finding the Fourth Proportional to 863,424.60, 1,295,136.90 and 808,128.60

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Solution

The fourth proportional to 863,424.60, 1,295,136.90 and 808,128.60 is: 1,212,192.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,424.60 : 1,295,136.90 = 808,128.60 : x
  2. Step 2: Convert to fraction form
    863,424.60/1,295,136.90 = 808,128.60/x
  3. Step 3: Cross multiply
    863,424.60x = 1,295,136.90 × 808,128.60
  4. Step 4: Simplify right side
    863,424.60x = 1,046,637,169,805.34
  5. Step 5: Solve for x
    x = 1,046,637,169,805.34/863,424.60
  6. Step 6: Final answer
    x = 1,212,192.90

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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.