Home / 724,194.70-1,087,328.85-409,266.70

Finding the Fourth Proportional to 724,194.70, 1,087,328.85 and 409,266.70

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Solution

The fourth proportional to 724,194.70, 1,087,328.85 and 409,266.70 is: 614,485.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,194.70 : 1,087,328.85 = 409,266.70 : x
  2. Step 2: Convert to fraction form
    724,194.70/1,087,328.85 = 409,266.70/x
  3. Step 3: Cross multiply
    724,194.70x = 1,087,328.85 × 409,266.70
  4. Step 4: Simplify right side
    724,194.70x = 445,007,490,254.30
  5. Step 5: Solve for x
    x = 445,007,490,254.30/724,194.70
  6. Step 6: Final answer
    x = 614,485.98

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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.