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Finding the Fourth Proportional to 438,423.98, 604,477.87 and 335,186.11

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Solution

The fourth proportional to 438,423.98, 604,477.87 and 335,186.11 is: 462,138.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,423.98 : 604,477.87 = 335,186.11 : x
  2. Step 2: Convert to fraction form
    438,423.98/604,477.87 = 335,186.11/x
  3. Step 3: Cross multiply
    438,423.98x = 604,477.87 × 335,186.11
  4. Step 4: Simplify right side
    438,423.98x = 202,612,587,337.58
  5. Step 5: Solve for x
    x = 202,612,587,337.58/438,423.98
  6. Step 6: Final answer
    x = 462,138.47

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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.