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Finding the Fourth Proportional to 675,090.47, 931,595.18 and 384,764.88

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Solution

The fourth proportional to 675,090.47, 931,595.18 and 384,764.88 is: 530,958.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,090.47 : 931,595.18 = 384,764.88 : x
  2. Step 2: Convert to fraction form
    675,090.47/931,595.18 = 384,764.88/x
  3. Step 3: Cross multiply
    675,090.47x = 931,595.18 × 384,764.88
  4. Step 4: Simplify right side
    675,090.47x = 358,445,107,641.28
  5. Step 5: Solve for x
    x = 358,445,107,641.28/675,090.47
  6. Step 6: Final answer
    x = 530,958.62

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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.