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Finding the Fourth Proportional to 374,423.40, 561,635.10 and 356,927.40

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Solution

The fourth proportional to 374,423.40, 561,635.10 and 356,927.40 is: 535,391.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,423.40 : 561,635.10 = 356,927.40 : x
  2. Step 2: Convert to fraction form
    374,423.40/561,635.10 = 356,927.40/x
  3. Step 3: Cross multiply
    374,423.40x = 561,635.10 × 356,927.40
  4. Step 4: Simplify right side
    374,423.40x = 200,462,955,991.74
  5. Step 5: Solve for x
    x = 200,462,955,991.74/374,423.40
  6. Step 6: Final answer
    x = 535,391.10

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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.