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Finding the Fourth Proportional to 387,797.48, 535,461.54 and 302,765.48

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Solution

The fourth proportional to 387,797.48, 535,461.54 and 302,765.48 is: 418,051.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,797.48 : 535,461.54 = 302,765.48 : x
  2. Step 2: Convert to fraction form
    387,797.48/535,461.54 = 302,765.48/x
  3. Step 3: Cross multiply
    387,797.48x = 535,461.54 × 302,765.48
  4. Step 4: Simplify right side
    387,797.48x = 162,119,270,179.64
  5. Step 5: Solve for x
    x = 162,119,270,179.64/387,797.48
  6. Step 6: Final answer
    x = 418,051.38

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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.