Home / 738,153.67-1,018,652.07-398,621.92

Finding the Fourth Proportional to 738,153.67, 1,018,652.07 and 398,621.92

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Solution

The fourth proportional to 738,153.67, 1,018,652.07 and 398,621.92 is: 550,098.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,153.67 : 1,018,652.07 = 398,621.92 : x
  2. Step 2: Convert to fraction form
    738,153.67/1,018,652.07 = 398,621.92/x
  3. Step 3: Cross multiply
    738,153.67x = 1,018,652.07 × 398,621.92
  4. Step 4: Simplify right side
    738,153.67x = 406,057,043,955.37
  5. Step 5: Solve for x
    x = 406,057,043,955.37/738,153.67
  6. Step 6: Final answer
    x = 550,098.25

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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.