Home / 758,144.28-1,045,800.54-489,872.28

Finding the Fourth Proportional to 758,144.28, 1,045,800.54 and 489,872.28

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Solution

The fourth proportional to 758,144.28, 1,045,800.54 and 489,872.28 is: 675,740.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,144.28 : 1,045,800.54 = 489,872.28 : x
  2. Step 2: Convert to fraction form
    758,144.28/1,045,800.54 = 489,872.28/x
  3. Step 3: Cross multiply
    758,144.28x = 1,045,800.54 × 489,872.28
  4. Step 4: Simplify right side
    758,144.28x = 512,308,694,955.03
  5. Step 5: Solve for x
    x = 512,308,694,955.03/758,144.28
  6. Step 6: Final answer
    x = 675,740.37

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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.