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Finding the Fourth Proportional to 438,420.62, 604,955.57 and 266,249.04

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Solution

The fourth proportional to 438,420.62, 604,955.57 and 266,249.04 is: 367,384.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,420.62 : 604,955.57 = 266,249.04 : x
  2. Step 2: Convert to fraction form
    438,420.62/604,955.57 = 266,249.04/x
  3. Step 3: Cross multiply
    438,420.62x = 604,955.57 × 266,249.04
  4. Step 4: Simplify right side
    438,420.62x = 161,068,838,423.91
  5. Step 5: Solve for x
    x = 161,068,838,423.91/438,420.62
  6. Step 6: Final answer
    x = 367,384.27

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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.