Home / 987,292.80-1,480,780.80-355,881.60

Finding the Fourth Proportional to 987,292.80, 1,480,780.80 and 355,881.60

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Solution

The fourth proportional to 987,292.80, 1,480,780.80 and 355,881.60 is: 533,765.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,292.80 : 1,480,780.80 = 355,881.60 : x
  2. Step 2: Convert to fraction form
    987,292.80/1,480,780.80 = 355,881.60/x
  3. Step 3: Cross multiply
    987,292.80x = 1,480,780.80 × 355,881.60
  4. Step 4: Simplify right side
    987,292.80x = 526,982,640,353.28
  5. Step 5: Solve for x
    x = 526,982,640,353.28/987,292.80
  6. Step 6: Final answer
    x = 533,765.30

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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.