Home / 724,972.07-1,086,859.42-319,875.89

Finding the Fourth Proportional to 724,972.07, 1,086,859.42 and 319,875.89

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Solution

The fourth proportional to 724,972.07, 1,086,859.42 and 319,875.89 is: 479,549.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,972.07 : 1,086,859.42 = 319,875.89 : x
  2. Step 2: Convert to fraction form
    724,972.07/1,086,859.42 = 319,875.89/x
  3. Step 3: Cross multiply
    724,972.07x = 1,086,859.42 × 319,875.89
  4. Step 4: Simplify right side
    724,972.07x = 347,660,118,043.40
  5. Step 5: Solve for x
    x = 347,660,118,043.40/724,972.07
  6. Step 6: Final answer
    x = 479,549.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.