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Finding the Fourth Proportional to 438,747, 604,885.34 and 348,402.03

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Solution

The fourth proportional to 438,747, 604,885.34 and 348,402.03 is: 480,329.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,747 : 604,885.34 = 348,402.03 : x
  2. Step 2: Convert to fraction form
    438,747/604,885.34 = 348,402.03/x
  3. Step 3: Cross multiply
    438,747x = 604,885.34 × 348,402.03
  4. Step 4: Simplify right side
    438,747x = 210,743,278,631.23
  5. Step 5: Solve for x
    x = 210,743,278,631.23/438,747
  6. Step 6: Final answer
    x = 480,329.85

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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.