Home / 738,444.13-1,019,053.81-398,912.38

Finding the Fourth Proportional to 738,444.13, 1,019,053.81 and 398,912.38

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Solution

The fourth proportional to 738,444.13, 1,019,053.81 and 398,912.38 is: 550,499.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,444.13 : 1,019,053.81 = 398,912.38 : x
  2. Step 2: Convert to fraction form
    738,444.13/1,019,053.81 = 398,912.38/x
  3. Step 3: Cross multiply
    738,444.13x = 1,019,053.81 × 398,912.38
  4. Step 4: Simplify right side
    738,444.13x = 406,513,180,695.17
  5. Step 5: Solve for x
    x = 406,513,180,695.17/738,444.13
  6. Step 6: Final answer
    x = 550,499.58

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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.