Home / 738,547.64-1,107,378.38-338,687.54

Finding the Fourth Proportional to 738,547.64, 1,107,378.38 and 338,687.54

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Solution

The fourth proportional to 738,547.64, 1,107,378.38 and 338,687.54 is: 507,828.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,547.64 : 1,107,378.38 = 338,687.54 : x
  2. Step 2: Convert to fraction form
    738,547.64/1,107,378.38 = 338,687.54/x
  3. Step 3: Cross multiply
    738,547.64x = 1,107,378.38 × 338,687.54
  4. Step 4: Simplify right side
    738,547.64x = 375,055,259,371.39
  5. Step 5: Solve for x
    x = 375,055,259,371.39/738,547.64
  6. Step 6: Final answer
    x = 507,828.12

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1.5x scale

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.