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Finding the Fourth Proportional to 438,329.40, 657,494.10 and 333,353.40

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Solution

The fourth proportional to 438,329.40, 657,494.10 and 333,353.40 is: 500,030.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,329.40 : 657,494.10 = 333,353.40 : x
  2. Step 2: Convert to fraction form
    438,329.40/657,494.10 = 333,353.40/x
  3. Step 3: Cross multiply
    438,329.40x = 657,494.10 × 333,353.40
  4. Step 4: Simplify right side
    438,329.40x = 219,177,893,714.94
  5. Step 5: Solve for x
    x = 219,177,893,714.94/438,329.40
  6. Step 6: Final answer
    x = 500,030.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.