Home / 724,601.30-999,981.01-402,311.37

Finding the Fourth Proportional to 724,601.30, 999,981.01 and 402,311.37

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Solution

The fourth proportional to 724,601.30, 999,981.01 and 402,311.37 is: 555,207.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,601.30 : 999,981.01 = 402,311.37 : x
  2. Step 2: Convert to fraction form
    724,601.30/999,981.01 = 402,311.37/x
  3. Step 3: Cross multiply
    724,601.30x = 999,981.01 × 402,311.37
  4. Step 4: Simplify right side
    724,601.30x = 402,303,725,107.18
  5. Step 5: Solve for x
    x = 402,303,725,107.18/724,601.30
  6. Step 6: Final answer
    x = 555,207.02

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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.