Home / 917,690.20-1,376,729.70-277,941.40

Finding the Fourth Proportional to 917,690.20, 1,376,729.70 and 277,941.40

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Solution

The fourth proportional to 917,690.20, 1,376,729.70 and 277,941.40 is: 416,970.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,690.20 : 1,376,729.70 = 277,941.40 : x
  2. Step 2: Convert to fraction form
    917,690.20/1,376,729.70 = 277,941.40/x
  3. Step 3: Cross multiply
    917,690.20x = 1,376,729.70 × 277,941.40
  4. Step 4: Simplify right side
    917,690.20x = 382,650,180,239.58
  5. Step 5: Solve for x
    x = 382,650,180,239.58/917,690.20
  6. Step 6: Final answer
    x = 416,970.98

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1.5x scale

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.