Home / 862,802.80-1,294,204.20-489,554.80

Finding the Fourth Proportional to 862,802.80, 1,294,204.20 and 489,554.80

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Solution

The fourth proportional to 862,802.80, 1,294,204.20 and 489,554.80 is: 734,332.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,802.80 : 1,294,204.20 = 489,554.80 : x
  2. Step 2: Convert to fraction form
    862,802.80/1,294,204.20 = 489,554.80/x
  3. Step 3: Cross multiply
    862,802.80x = 1,294,204.20 × 489,554.80
  4. Step 4: Simplify right side
    862,802.80x = 633,583,878,290.16
  5. Step 5: Solve for x
    x = 633,583,878,290.16/862,802.80
  6. Step 6: Final answer
    x = 734,332.20

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Double scale
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Similar ratio
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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.