Home / 570,619.58-787,445.40-315,965.30

Finding the Fourth Proportional to 570,619.58, 787,445.40 and 315,965.30

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Solution

The fourth proportional to 570,619.58, 787,445.40 and 315,965.30 is: 436,026.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,619.58 : 787,445.40 = 315,965.30 : x
  2. Step 2: Convert to fraction form
    570,619.58/787,445.40 = 315,965.30/x
  3. Step 3: Cross multiply
    570,619.58x = 787,445.40 × 315,965.30
  4. Step 4: Simplify right side
    570,619.58x = 248,805,422,044.62
  5. Step 5: Solve for x
    x = 248,805,422,044.62/570,619.58
  6. Step 6: Final answer
    x = 436,026.79

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1.5x scale

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.