Home / 761,020.30-1,140,705.07-381,024.60

Finding the Fourth Proportional to 761,020.30, 1,140,705.07 and 381,024.60

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Solution

The fourth proportional to 761,020.30, 1,140,705.07 and 381,024.60 is: 571,123.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,020.30 : 1,140,705.07 = 381,024.60 : x
  2. Step 2: Convert to fraction form
    761,020.30/1,140,705.07 = 381,024.60/x
  3. Step 3: Cross multiply
    761,020.30x = 1,140,705.07 × 381,024.60
  4. Step 4: Simplify right side
    761,020.30x = 434,636,697,768.65
  5. Step 5: Solve for x
    x = 434,636,697,768.65/761,020.30
  6. Step 6: Final answer
    x = 571,123.66

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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.