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Finding the Fourth Proportional to 572,852.52, 790,514.37 and 318,219.84

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Solution

The fourth proportional to 572,852.52, 790,514.37 and 318,219.84 is: 439,131.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,852.52 : 790,514.37 = 318,219.84 : x
  2. Step 2: Convert to fraction form
    572,852.52/790,514.37 = 318,219.84/x
  3. Step 3: Cross multiply
    572,852.52x = 790,514.37 × 318,219.84
  4. Step 4: Simplify right side
    572,852.52x = 251,557,356,339.10
  5. Step 5: Solve for x
    x = 251,557,356,339.10/572,852.52
  6. Step 6: Final answer
    x = 439,131.10

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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.