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Finding the Fourth Proportional to 556,472.76, 834,840.71 and 443,049.45

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Solution

The fourth proportional to 556,472.76, 834,840.71 and 443,049.45 is: 664,678.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,472.76 : 834,840.71 = 443,049.45 : x
  2. Step 2: Convert to fraction form
    556,472.76/834,840.71 = 443,049.45/x
  3. Step 3: Cross multiply
    556,472.76x = 834,840.71 × 443,049.45
  4. Step 4: Simplify right side
    556,472.76x = 369,875,717,403.11
  5. Step 5: Solve for x
    x = 369,875,717,403.11/556,472.76
  6. Step 6: Final answer
    x = 664,678.93

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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.