Home / 738,292.86-1,018,846.89-428,256.45

Finding the Fourth Proportional to 738,292.86, 1,018,846.89 and 428,256.45

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Solution

The fourth proportional to 738,292.86, 1,018,846.89 and 428,256.45 is: 590,995.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,292.86 : 1,018,846.89 = 428,256.45 : x
  2. Step 2: Convert to fraction form
    738,292.86/1,018,846.89 = 428,256.45/x
  3. Step 3: Cross multiply
    738,292.86x = 1,018,846.89 × 428,256.45
  4. Step 4: Simplify right side
    738,292.86x = 436,327,752,204.94
  5. Step 5: Solve for x
    x = 436,327,752,204.94/738,292.86
  6. Step 6: Final answer
    x = 590,995.49

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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.