Home / 807,188.09-1,209,951.47-358,120.44

Finding the Fourth Proportional to 807,188.09, 1,209,951.47 and 358,120.44

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Solution

The fourth proportional to 807,188.09, 1,209,951.47 and 358,120.44 is: 536,812.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,188.09 : 1,209,951.47 = 358,120.44 : x
  2. Step 2: Convert to fraction form
    807,188.09/1,209,951.47 = 358,120.44/x
  3. Step 3: Cross multiply
    807,188.09x = 1,209,951.47 × 358,120.44
  4. Step 4: Simplify right side
    807,188.09x = 433,308,353,710.35
  5. Step 5: Solve for x
    x = 433,308,353,710.35/807,188.09
  6. Step 6: Final answer
    x = 536,812.13

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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.