Home / 746,342.81-1,118,851.38-290,828.58

Finding the Fourth Proportional to 746,342.81, 1,118,851.38 and 290,828.58

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Solution

The fourth proportional to 746,342.81, 1,118,851.38 and 290,828.58 is: 435,984.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,342.81 : 1,118,851.38 = 290,828.58 : x
  2. Step 2: Convert to fraction form
    746,342.81/1,118,851.38 = 290,828.58/x
  3. Step 3: Cross multiply
    746,342.81x = 1,118,851.38 × 290,828.58
  4. Step 4: Simplify right side
    746,342.81x = 325,393,953,880.75
  5. Step 5: Solve for x
    x = 325,393,953,880.75/746,342.81
  6. Step 6: Final answer
    x = 435,984.58

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Double scale
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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.