Home / 999,077.60-1,378,412.35-611,488.96

Finding the Fourth Proportional to 999,077.60, 1,378,412.35 and 611,488.96

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Solution

The fourth proportional to 999,077.60, 1,378,412.35 and 611,488.96 is: 843,662.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,077.60 : 1,378,412.35 = 611,488.96 : x
  2. Step 2: Convert to fraction form
    999,077.60/1,378,412.35 = 611,488.96/x
  3. Step 3: Cross multiply
    999,077.60x = 1,378,412.35 × 611,488.96
  4. Step 4: Simplify right side
    999,077.60x = 842,883,936,980.92
  5. Step 5: Solve for x
    x = 842,883,936,980.92/999,077.60
  6. Step 6: Final answer
    x = 843,662.13

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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.