Home / 1,018,738.86-1,528,159.05-387,701.58

Finding the Fourth Proportional to 1,018,738.86, 1,528,159.05 and 387,701.58

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Solution

The fourth proportional to 1,018,738.86, 1,528,159.05 and 387,701.58 is: 581,571.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,738.86 : 1,528,159.05 = 387,701.58 : x
  2. Step 2: Convert to fraction form
    1,018,738.86/1,528,159.05 = 387,701.58/x
  3. Step 3: Cross multiply
    1,018,738.86x = 1,528,159.05 × 387,701.58
  4. Step 4: Simplify right side
    1,018,738.86x = 592,469,678,176.30
  5. Step 5: Solve for x
    x = 592,469,678,176.30/1,018,738.86
  6. Step 6: Final answer
    x = 581,571.69

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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.