Home / 887,029.60-1,330,544.40-413,762.80

Finding the Fourth Proportional to 887,029.60, 1,330,544.40 and 413,762.80

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Solution

The fourth proportional to 887,029.60, 1,330,544.40 and 413,762.80 is: 620,644.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,029.60 : 1,330,544.40 = 413,762.80 : x
  2. Step 2: Convert to fraction form
    887,029.60/1,330,544.40 = 413,762.80/x
  3. Step 3: Cross multiply
    887,029.60x = 1,330,544.40 × 413,762.80
  4. Step 4: Simplify right side
    887,029.60x = 550,529,776,468.32
  5. Step 5: Solve for x
    x = 550,529,776,468.32/887,029.60
  6. Step 6: Final answer
    x = 620,644.20

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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.