Home / 917,690.70-1,376,730.45-277,941.90

Finding the Fourth Proportional to 917,690.70, 1,376,730.45 and 277,941.90

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Solution

The fourth proportional to 917,690.70, 1,376,730.45 and 277,941.90 is: 416,971.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,690.70 : 1,376,730.45 = 277,941.90 : x
  2. Step 2: Convert to fraction form
    917,690.70/1,376,730.45 = 277,941.90/x
  3. Step 3: Cross multiply
    917,690.70x = 1,376,730.45 × 277,941.90
  4. Step 4: Simplify right side
    917,690.70x = 382,651,077,060.86
  5. Step 5: Solve for x
    x = 382,651,077,060.86/917,690.70
  6. Step 6: Final answer
    x = 416,971.73

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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.