Home / 572,746.86-790,407.12-318,114.48

Finding the Fourth Proportional to 572,746.86, 790,407.12 and 318,114.48

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Solution

The fourth proportional to 572,746.86, 790,407.12 and 318,114.48 is: 439,007.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,746.86 : 790,407.12 = 318,114.48 : x
  2. Step 2: Convert to fraction form
    572,746.86/790,407.12 = 318,114.48/x
  3. Step 3: Cross multiply
    572,746.86x = 790,407.12 × 318,114.48
  4. Step 4: Simplify right side
    572,746.86x = 251,439,949,967.10
  5. Step 5: Solve for x
    x = 251,439,949,967.10/572,746.86
  6. Step 6: Final answer
    x = 439,007.12

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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.