Home / 999,942.40-1,379,902.08-547,224.32

Finding the Fourth Proportional to 999,942.40, 1,379,902.08 and 547,224.32

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Solution

The fourth proportional to 999,942.40, 1,379,902.08 and 547,224.32 is: 755,159.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,942.40 : 1,379,902.08 = 547,224.32 : x
  2. Step 2: Convert to fraction form
    999,942.40/1,379,902.08 = 547,224.32/x
  3. Step 3: Cross multiply
    999,942.40x = 1,379,902.08 × 547,224.32
  4. Step 4: Simplify right side
    999,942.40x = 755,115,977,394.59
  5. Step 5: Solve for x
    x = 755,115,977,394.59/999,942.40
  6. Step 6: Final answer
    x = 755,159.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.