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Finding the Fourth Proportional to 663,090.41, 915,052.38 and 368,758.18

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Solution

The fourth proportional to 663,090.41, 915,052.38 and 368,758.18 is: 508,879.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,090.41 : 915,052.38 = 368,758.18 : x
  2. Step 2: Convert to fraction form
    663,090.41/915,052.38 = 368,758.18/x
  3. Step 3: Cross multiply
    663,090.41x = 915,052.38 × 368,758.18
  4. Step 4: Simplify right side
    663,090.41x = 337,433,050,014.44
  5. Step 5: Solve for x
    x = 337,433,050,014.44/663,090.41
  6. Step 6: Final answer
    x = 508,879.40

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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.