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Finding the Fourth Proportional to 557,527.90, 769,389.42 and 302,879.32

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Solution

The fourth proportional to 557,527.90, 769,389.42 and 302,879.32 is: 417,973.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,527.90 : 769,389.42 = 302,879.32 : x
  2. Step 2: Convert to fraction form
    557,527.90/769,389.42 = 302,879.32/x
  3. Step 3: Cross multiply
    557,527.90x = 769,389.42 × 302,879.32
  4. Step 4: Simplify right side
    557,527.90x = 233,032,144,344.79
  5. Step 5: Solve for x
    x = 233,032,144,344.79/557,527.90
  6. Step 6: Final answer
    x = 417,973.96

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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.