Home / 724,403.55-1,087,320.47-543,861.03

Finding the Fourth Proportional to 724,403.55, 1,087,320.47 and 543,861.03

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Solution

The fourth proportional to 724,403.55, 1,087,320.47 and 543,861.03 is: 816,328.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,403.55 : 1,087,320.47 = 543,861.03 : x
  2. Step 2: Convert to fraction form
    724,403.55/1,087,320.47 = 543,861.03/x
  3. Step 3: Cross multiply
    724,403.55x = 1,087,320.47 × 543,861.03
  4. Step 4: Simplify right side
    724,403.55x = 591,351,230,754.28
  5. Step 5: Solve for x
    x = 591,351,230,754.28/724,403.55
  6. Step 6: Final answer
    x = 816,328.45

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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.