Home / 738,494.36-1,019,123.16-398,962.64

Finding the Fourth Proportional to 738,494.36, 1,019,123.16 and 398,962.64

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Solution

The fourth proportional to 738,494.36, 1,019,123.16 and 398,962.64 is: 550,568.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,494.36 : 1,019,123.16 = 398,962.64 : x
  2. Step 2: Convert to fraction form
    738,494.36/1,019,123.16 = 398,962.64/x
  3. Step 3: Cross multiply
    738,494.36x = 1,019,123.16 × 398,962.64
  4. Step 4: Simplify right side
    738,494.36x = 406,592,066,398.74
  5. Step 5: Solve for x
    x = 406,592,066,398.74/738,494.36
  6. Step 6: Final answer
    x = 550,568.95

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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.