Home / 986,276.60-1,479,414.90-355,108.40

Finding the Fourth Proportional to 986,276.60, 1,479,414.90 and 355,108.40

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Solution

The fourth proportional to 986,276.60, 1,479,414.90 and 355,108.40 is: 532,662.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,276.60 : 1,479,414.90 = 355,108.40 : x
  2. Step 2: Convert to fraction form
    986,276.60/1,479,414.90 = 355,108.40/x
  3. Step 3: Cross multiply
    986,276.60x = 1,479,414.90 × 355,108.40
  4. Step 4: Simplify right side
    986,276.60x = 525,352,658,075.16
  5. Step 5: Solve for x
    x = 525,352,658,075.16/986,276.60
  6. Step 6: Final answer
    x = 532,662.60

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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.