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Finding the Fourth Proportional to 575,294.48, 793,907.26 and 320,640.20

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Solution

The fourth proportional to 575,294.48, 793,907.26 and 320,640.20 is: 442,483.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,294.48 : 793,907.26 = 320,640.20 : x
  2. Step 2: Convert to fraction form
    575,294.48/793,907.26 = 320,640.20/x
  3. Step 3: Cross multiply
    575,294.48x = 793,907.26 × 320,640.20
  4. Step 4: Simplify right side
    575,294.48x = 254,558,579,039.88
  5. Step 5: Solve for x
    x = 254,558,579,039.88/575,294.48
  6. Step 6: Final answer
    x = 442,483.96

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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.