Home / 724,866.15-1,000,343.43-402,600.75

Finding the Fourth Proportional to 724,866.15, 1,000,343.43 and 402,600.75

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Solution

The fourth proportional to 724,866.15, 1,000,343.43 and 402,600.75 is: 555,604.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,866.15 : 1,000,343.43 = 402,600.75 : x
  2. Step 2: Convert to fraction form
    724,866.15/1,000,343.43 = 402,600.75/x
  3. Step 3: Cross multiply
    724,866.15x = 1,000,343.43 × 402,600.75
  4. Step 4: Simplify right side
    724,866.15x = 402,739,015,175.57
  5. Step 5: Solve for x
    x = 402,739,015,175.57/724,866.15
  6. Step 6: Final answer
    x = 555,604.67

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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.