Home / 572,784.92-790,421.22-318,152.36

Finding the Fourth Proportional to 572,784.92, 790,421.22 and 318,152.36

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Solution

The fourth proportional to 572,784.92, 790,421.22 and 318,152.36 is: 439,038.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,784.92 : 790,421.22 = 318,152.36 : x
  2. Step 2: Convert to fraction form
    572,784.92/790,421.22 = 318,152.36/x
  3. Step 3: Cross multiply
    572,784.92x = 790,421.22 × 318,152.36
  4. Step 4: Simplify right side
    572,784.92x = 251,474,376,537.08
  5. Step 5: Solve for x
    x = 251,474,376,537.08/572,784.92
  6. Step 6: Final answer
    x = 439,038.05

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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.