Home / 1,330,355.40-1,995,533.10-489,510.60

Finding the Fourth Proportional to 1,330,355.40, 1,995,533.10 and 489,510.60

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Solution

The fourth proportional to 1,330,355.40, 1,995,533.10 and 489,510.60 is: 734,265.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,355.40 : 1,995,533.10 = 489,510.60 : x
  2. Step 2: Convert to fraction form
    1,330,355.40/1,995,533.10 = 489,510.60/x
  3. Step 3: Cross multiply
    1,330,355.40x = 1,995,533.10 × 489,510.60
  4. Step 4: Simplify right side
    1,330,355.40x = 976,834,605,100.86
  5. Step 5: Solve for x
    x = 976,834,605,100.86/1,330,355.40
  6. Step 6: Final answer
    x = 734,265.90

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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.