Home / 588,869.12-812,639.52-320,597.12

Finding the Fourth Proportional to 588,869.12, 812,639.52 and 320,597.12

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Solution

The fourth proportional to 588,869.12, 812,639.52 and 320,597.12 is: 442,424.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    588,869.12 : 812,639.52 = 320,597.12 : x
  2. Step 2: Convert to fraction form
    588,869.12/812,639.52 = 320,597.12/x
  3. Step 3: Cross multiply
    588,869.12x = 812,639.52 × 320,597.12
  4. Step 4: Simplify right side
    588,869.12x = 260,529,889,710.18
  5. Step 5: Solve for x
    x = 260,529,889,710.18/588,869.12
  6. Step 6: Final answer
    x = 442,424.10

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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.