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Finding the Fourth Proportional to 524,924.30, 724,374.69 and 310,133.90

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Solution

The fourth proportional to 524,924.30, 724,374.69 and 310,133.90 is: 427,972.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,924.30 : 724,374.69 = 310,133.90 : x
  2. Step 2: Convert to fraction form
    524,924.30/724,374.69 = 310,133.90/x
  3. Step 3: Cross multiply
    524,924.30x = 724,374.69 × 310,133.90
  4. Step 4: Simplify right side
    524,924.30x = 224,653,147,670.99
  5. Step 5: Solve for x
    x = 224,653,147,670.99/524,924.30
  6. Step 6: Final answer
    x = 427,972.47

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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.