Home / 896,678.46-1,345,338.90-384,128.58

Finding the Fourth Proportional to 896,678.46, 1,345,338.90 and 384,128.58

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Solution

The fourth proportional to 896,678.46, 1,345,338.90 and 384,128.58 is: 576,330.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    896,678.46 : 1,345,338.90 = 384,128.58 : x
  2. Step 2: Convert to fraction form
    896,678.46/1,345,338.90 = 384,128.58/x
  3. Step 3: Cross multiply
    896,678.46x = 1,345,338.90 × 384,128.58
  4. Step 4: Simplify right side
    896,678.46x = 516,783,121,275.76
  5. Step 5: Solve for x
    x = 516,783,121,275.76/896,678.46
  6. Step 6: Final answer
    x = 576,330.47

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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.