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Finding the Fourth Proportional to 575,310, 793,931.44 and 320,677.28

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Solution

The fourth proportional to 575,310, 793,931.44 and 320,677.28 is: 442,536.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,310 : 793,931.44 = 320,677.28 : x
  2. Step 2: Convert to fraction form
    575,310/793,931.44 = 320,677.28/x
  3. Step 3: Cross multiply
    575,310x = 793,931.44 × 320,677.28
  4. Step 4: Simplify right side
    575,310x = 254,595,774,685.68
  5. Step 5: Solve for x
    x = 254,595,774,685.68/575,310
  6. Step 6: Final answer
    x = 442,536.68

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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.