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Finding the Fourth Proportional to 385,769.60, 575,762.32 and 360,575.36

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Solution

The fourth proportional to 385,769.60, 575,762.32 and 360,575.36 is: 538,159.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,769.60 : 575,762.32 = 360,575.36 : x
  2. Step 2: Convert to fraction form
    385,769.60/575,762.32 = 360,575.36/x
  3. Step 3: Cross multiply
    385,769.60x = 575,762.32 × 360,575.36
  4. Step 4: Simplify right side
    385,769.60x = 207,605,705,808.44
  5. Step 5: Solve for x
    x = 207,605,705,808.44/385,769.60
  6. Step 6: Final answer
    x = 538,159.84

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.