Home / 724,590.40-1,087,274.40-303,908.80

Finding the Fourth Proportional to 724,590.40, 1,087,274.40 and 303,908.80

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Solution

The fourth proportional to 724,590.40, 1,087,274.40 and 303,908.80 is: 456,026.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,590.40 : 1,087,274.40 = 303,908.80 : x
  2. Step 2: Convert to fraction form
    724,590.40/1,087,274.40 = 303,908.80/x
  3. Step 3: Cross multiply
    724,590.40x = 1,087,274.40 × 303,908.80
  4. Step 4: Simplify right side
    724,590.40x = 330,432,258,174.72
  5. Step 5: Solve for x
    x = 330,432,258,174.72/724,590.40
  6. Step 6: Final answer
    x = 456,026.27

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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.