Home / 738,154.80-1,018,648.94-415,968.38

Finding the Fourth Proportional to 738,154.80, 1,018,648.94 and 415,968.38

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Solution

The fourth proportional to 738,154.80, 1,018,648.94 and 415,968.38 is: 574,033.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,154.80 : 1,018,648.94 = 415,968.38 : x
  2. Step 2: Convert to fraction form
    738,154.80/1,018,648.94 = 415,968.38/x
  3. Step 3: Cross multiply
    738,154.80x = 1,018,648.94 × 415,968.38
  4. Step 4: Simplify right side
    738,154.80x = 423,725,749,360.52
  5. Step 5: Solve for x
    x = 423,725,749,360.52/738,154.80
  6. Step 6: Final answer
    x = 574,033.72

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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.