Home / 807,359.20-1,210,174.80-274,386.40

Finding the Fourth Proportional to 807,359.20, 1,210,174.80 and 274,386.40

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Solution

The fourth proportional to 807,359.20, 1,210,174.80 and 274,386.40 is: 411,285.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,359.20 : 1,210,174.80 = 274,386.40 : x
  2. Step 2: Convert to fraction form
    807,359.20/1,210,174.80 = 274,386.40/x
  3. Step 3: Cross multiply
    807,359.20x = 1,210,174.80 × 274,386.40
  4. Step 4: Simplify right side
    807,359.20x = 332,055,506,742.72
  5. Step 5: Solve for x
    x = 332,055,506,742.72/807,359.20
  6. Step 6: Final answer
    x = 411,285.96

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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.