Home / 804,574.20-1,207,638.90-489,646.20

Finding the Fourth Proportional to 804,574.20, 1,207,638.90 and 489,646.20

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Solution

The fourth proportional to 804,574.20, 1,207,638.90 and 489,646.20 is: 734,942.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,574.20 : 1,207,638.90 = 489,646.20 : x
  2. Step 2: Convert to fraction form
    804,574.20/1,207,638.90 = 489,646.20/x
  3. Step 3: Cross multiply
    804,574.20x = 1,207,638.90 × 489,646.20
  4. Step 4: Simplify right side
    804,574.20x = 591,315,798,357.18
  5. Step 5: Solve for x
    x = 591,315,798,357.18/804,574.20
  6. Step 6: Final answer
    x = 734,942.53

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Double scale
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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.