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Finding the Fourth Proportional to 724,558.75, 999,852.05 and 402,248.10

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Solution

The fourth proportional to 724,558.75, 999,852.05 and 402,248.10 is: 555,080.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,558.75 : 999,852.05 = 402,248.10 : x
  2. Step 2: Convert to fraction form
    724,558.75/999,852.05 = 402,248.10/x
  3. Step 3: Cross multiply
    724,558.75x = 999,852.05 × 402,248.10
  4. Step 4: Simplify right side
    724,558.75x = 402,188,585,382.37
  5. Step 5: Solve for x
    x = 402,188,585,382.37/724,558.75
  6. Step 6: Final answer
    x = 555,080.71

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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.