Home / 887,907.40-1,331,990.70-288,766.60

Finding the Fourth Proportional to 887,907.40, 1,331,990.70 and 288,766.60

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Solution

The fourth proportional to 887,907.40, 1,331,990.70 and 288,766.60 is: 433,192.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,907.40 : 1,331,990.70 = 288,766.60 : x
  2. Step 2: Convert to fraction form
    887,907.40/1,331,990.70 = 288,766.60/x
  3. Step 3: Cross multiply
    887,907.40x = 1,331,990.70 × 288,766.60
  4. Step 4: Simplify right side
    887,907.40x = 384,634,425,670.62
  5. Step 5: Solve for x
    x = 384,634,425,670.62/887,907.40
  6. Step 6: Final answer
    x = 433,192.05

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Double scale
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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.