Home / 697,979.76-1,047,280.68-365,478

Finding the Fourth Proportional to 697,979.76, 1,047,280.68 and 365,478

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Solution

The fourth proportional to 697,979.76, 1,047,280.68 and 365,478 is: 548,379.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,979.76 : 1,047,280.68 = 365,478 : x
  2. Step 2: Convert to fraction form
    697,979.76/1,047,280.68 = 365,478/x
  3. Step 3: Cross multiply
    697,979.76x = 1,047,280.68 × 365,478
  4. Step 4: Simplify right side
    697,979.76x = 382,758,048,365.04
  5. Step 5: Solve for x
    x = 382,758,048,365.04/697,979.76
  6. Step 6: Final answer
    x = 548,379.87

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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.