Home / 724,705.26-1,000,185.54-438,227.40

Finding the Fourth Proportional to 724,705.26, 1,000,185.54 and 438,227.40

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Solution

The fourth proportional to 724,705.26, 1,000,185.54 and 438,227.40 is: 604,809.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,705.26 : 1,000,185.54 = 438,227.40 : x
  2. Step 2: Convert to fraction form
    724,705.26/1,000,185.54 = 438,227.40/x
  3. Step 3: Cross multiply
    724,705.26x = 1,000,185.54 × 438,227.40
  4. Step 4: Simplify right side
    724,705.26x = 438,308,708,711.80
  5. Step 5: Solve for x
    x = 438,308,708,711.80/724,705.26
  6. Step 6: Final answer
    x = 604,809.61

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Double scale
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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.