Home / 887,090.90-1,330,308.30-288,071.60

Finding the Fourth Proportional to 887,090.90, 1,330,308.30 and 288,071.60

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Solution

The fourth proportional to 887,090.90, 1,330,308.30 and 288,071.60 is: 432,000.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,090.90 : 1,330,308.30 = 288,071.60 : x
  2. Step 2: Convert to fraction form
    887,090.90/1,330,308.30 = 288,071.60/x
  3. Step 3: Cross multiply
    887,090.90x = 1,330,308.30 × 288,071.60
  4. Step 4: Simplify right side
    887,090.90x = 383,224,040,474.28
  5. Step 5: Solve for x
    x = 383,224,040,474.28/887,090.90
  6. Step 6: Final answer
    x = 432,000.87

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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.