Home / 887,291.90-1,330,609.80-288,272.60

Finding the Fourth Proportional to 887,291.90, 1,330,609.80 and 288,272.60

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Solution

The fourth proportional to 887,291.90, 1,330,609.80 and 288,272.60 is: 432,302.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,291.90 : 1,330,609.80 = 288,272.60 : x
  2. Step 2: Convert to fraction form
    887,291.90/1,330,609.80 = 288,272.60/x
  3. Step 3: Cross multiply
    887,291.90x = 1,330,609.80 × 288,272.60
  4. Step 4: Simplify right side
    887,291.90x = 383,578,346,631.48
  5. Step 5: Solve for x
    x = 383,578,346,631.48/887,291.90
  6. Step 6: Final answer
    x = 432,302.32

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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.