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Finding the Fourth Proportional to 557,287.02, 769,048.02 and 302,637.60

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Solution

The fourth proportional to 557,287.02, 769,048.02 and 302,637.60 is: 417,635.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,287.02 : 769,048.02 = 302,637.60 : x
  2. Step 2: Convert to fraction form
    557,287.02/769,048.02 = 302,637.60/x
  3. Step 3: Cross multiply
    557,287.02x = 769,048.02 × 302,637.60
  4. Step 4: Simplify right side
    557,287.02x = 232,742,847,057.55
  5. Step 5: Solve for x
    x = 232,742,847,057.55/557,287.02
  6. Step 6: Final answer
    x = 417,635.51

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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.