Home / 919,920.90-1,379,784.30-246,070.20

Finding the Fourth Proportional to 919,920.90, 1,379,784.30 and 246,070.20

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Solution

The fourth proportional to 919,920.90, 1,379,784.30 and 246,070.20 is: 369,079.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,920.90 : 1,379,784.30 = 246,070.20 : x
  2. Step 2: Convert to fraction form
    919,920.90/1,379,784.30 = 246,070.20/x
  3. Step 3: Cross multiply
    919,920.90x = 1,379,784.30 × 246,070.20
  4. Step 4: Simplify right side
    919,920.90x = 339,523,798,657.86
  5. Step 5: Solve for x
    x = 339,523,798,657.86/919,920.90
  6. Step 6: Final answer
    x = 369,079.34

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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.