Home / 738,475.77-1,019,338.79-448,100.49

Finding the Fourth Proportional to 738,475.77, 1,019,338.79 and 448,100.49

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Solution

The fourth proportional to 738,475.77, 1,019,338.79 and 448,100.49 is: 618,525.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,475.77 : 1,019,338.79 = 448,100.49 : x
  2. Step 2: Convert to fraction form
    738,475.77/1,019,338.79 = 448,100.49/x
  3. Step 3: Cross multiply
    738,475.77x = 1,019,338.79 × 448,100.49
  4. Step 4: Simplify right side
    738,475.77x = 456,766,209,034.51
  5. Step 5: Solve for x
    x = 456,766,209,034.51/738,475.77
  6. Step 6: Final answer
    x = 618,525.65

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Double scale
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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.