Home / 947,780.76-1,421,920.06-340,630.34

Finding the Fourth Proportional to 947,780.76, 1,421,920.06 and 340,630.34

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Solution

The fourth proportional to 947,780.76, 1,421,920.06 and 340,630.34 is: 511,034.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,780.76 : 1,421,920.06 = 340,630.34 : x
  2. Step 2: Convert to fraction form
    947,780.76/1,421,920.06 = 340,630.34/x
  3. Step 3: Cross multiply
    947,780.76x = 1,421,920.06 × 340,630.34
  4. Step 4: Simplify right side
    947,780.76x = 484,349,113,490.62
  5. Step 5: Solve for x
    x = 484,349,113,490.62/947,780.76
  6. Step 6: Final answer
    x = 511,034.97

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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.