Home / 738,142.88-1,018,424.88-480,399.26

Finding the Fourth Proportional to 738,142.88, 1,018,424.88 and 480,399.26

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Solution

The fourth proportional to 738,142.88, 1,018,424.88 and 480,399.26 is: 662,812.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,142.88 : 1,018,424.88 = 480,399.26 : x
  2. Step 2: Convert to fraction form
    738,142.88/1,018,424.88 = 480,399.26/x
  3. Step 3: Cross multiply
    738,142.88x = 1,018,424.88 × 480,399.26
  4. Step 4: Simplify right side
    738,142.88x = 489,250,553,625.46
  5. Step 5: Solve for x
    x = 489,250,553,625.46/738,142.88
  6. Step 6: Final answer
    x = 662,812.81

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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.