Home / 1,030,378.48-1,422,009.97-571,640.88

Finding the Fourth Proportional to 1,030,378.48, 1,422,009.97 and 571,640.88

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Solution

The fourth proportional to 1,030,378.48, 1,422,009.97 and 571,640.88 is: 788,913.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,030,378.48 : 1,422,009.97 = 571,640.88 : x
  2. Step 2: Convert to fraction form
    1,030,378.48/1,422,009.97 = 571,640.88/x
  3. Step 3: Cross multiply
    1,030,378.48x = 1,422,009.97 × 571,640.88
  4. Step 4: Simplify right side
    1,030,378.48x = 812,879,030,619.57
  5. Step 5: Solve for x
    x = 812,879,030,619.57/1,030,378.48
  6. Step 6: Final answer
    x = 788,913.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.