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Finding the Fourth Proportional to 572,703.86, 790,726.71 and 357,940.46

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Solution

The fourth proportional to 572,703.86, 790,726.71 and 357,940.46 is: 494,204.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,703.86 : 790,726.71 = 357,940.46 : x
  2. Step 2: Convert to fraction form
    572,703.86/790,726.71 = 357,940.46/x
  3. Step 3: Cross multiply
    572,703.86x = 790,726.71 × 357,940.46
  4. Step 4: Simplify right side
    572,703.86x = 283,033,082,311.69
  5. Step 5: Solve for x
    x = 283,033,082,311.69/572,703.86
  6. Step 6: Final answer
    x = 494,204.95

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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.