Home / 1,330,308.90-1,995,463.35-489,464.10

Finding the Fourth Proportional to 1,330,308.90, 1,995,463.35 and 489,464.10

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Solution

The fourth proportional to 1,330,308.90, 1,995,463.35 and 489,464.10 is: 734,196.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,308.90 : 1,995,463.35 = 489,464.10 : x
  2. Step 2: Convert to fraction form
    1,330,308.90/1,995,463.35 = 489,464.10/x
  3. Step 3: Cross multiply
    1,330,308.90x = 1,995,463.35 × 489,464.10
  4. Step 4: Simplify right side
    1,330,308.90x = 976,707,672,690.74
  5. Step 5: Solve for x
    x = 976,707,672,690.74/1,330,308.90
  6. Step 6: Final answer
    x = 734,196.15

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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.