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Finding the Fourth Proportional to 575,370.78, 793,641.15 and 381,774.30

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Solution

The fourth proportional to 575,370.78, 793,641.15 and 381,774.30 is: 526,602.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,370.78 : 793,641.15 = 381,774.30 : x
  2. Step 2: Convert to fraction form
    575,370.78/793,641.15 = 381,774.30/x
  3. Step 3: Cross multiply
    575,370.78x = 793,641.15 × 381,774.30
  4. Step 4: Simplify right side
    575,370.78x = 302,991,794,492.45
  5. Step 5: Solve for x
    x = 302,991,794,492.45/575,370.78
  6. Step 6: Final answer
    x = 526,602.68

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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.