Home / 523,921.50-723,011.67-285,457.50

Finding the Fourth Proportional to 523,921.50, 723,011.67 and 285,457.50

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Solution

The fourth proportional to 523,921.50, 723,011.67 and 285,457.50 is: 393,931.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,921.50 : 723,011.67 = 285,457.50 : x
  2. Step 2: Convert to fraction form
    523,921.50/723,011.67 = 285,457.50/x
  3. Step 3: Cross multiply
    523,921.50x = 723,011.67 × 285,457.50
  4. Step 4: Simplify right side
    523,921.50x = 206,389,103,789.03
  5. Step 5: Solve for x
    x = 206,389,103,789.03/523,921.50
  6. Step 6: Final answer
    x = 393,931.35

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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.