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Finding the Fourth Proportional to 538,155, 742,506.10 and 374,628.24

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Solution

The fourth proportional to 538,155, 742,506.10 and 374,628.24 is: 516,884.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,155 : 742,506.10 = 374,628.24 : x
  2. Step 2: Convert to fraction form
    538,155/742,506.10 = 374,628.24/x
  3. Step 3: Cross multiply
    538,155x = 742,506.10 × 374,628.24
  4. Step 4: Simplify right side
    538,155x = 278,163,753,432.26
  5. Step 5: Solve for x
    x = 278,163,753,432.26/538,155
  6. Step 6: Final answer
    x = 516,884.08

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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.