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Finding the Fourth Proportional to 500,533.74, 690,860.16 and 285,798.36

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Solution

The fourth proportional to 500,533.74, 690,860.16 and 285,798.36 is: 394,472.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,533.74 : 690,860.16 = 285,798.36 : x
  2. Step 2: Convert to fraction form
    500,533.74/690,860.16 = 285,798.36/x
  3. Step 3: Cross multiply
    500,533.74x = 690,860.16 × 285,798.36
  4. Step 4: Simplify right side
    500,533.74x = 197,446,700,717.34
  5. Step 5: Solve for x
    x = 197,446,700,717.34/500,533.74
  6. Step 6: Final answer
    x = 394,472.31

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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.