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Finding the Fourth Proportional to 909,114.60, 1,363,671.90 and 403,674.60

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Solution

The fourth proportional to 909,114.60, 1,363,671.90 and 403,674.60 is: 605,511.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,114.60 : 1,363,671.90 = 403,674.60 : x
  2. Step 2: Convert to fraction form
    909,114.60/1,363,671.90 = 403,674.60/x
  3. Step 3: Cross multiply
    909,114.60x = 1,363,671.90 × 403,674.60
  4. Step 4: Simplify right side
    909,114.60x = 550,479,708,763.74
  5. Step 5: Solve for x
    x = 550,479,708,763.74/909,114.60
  6. Step 6: Final answer
    x = 605,511.90

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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.