Home / 1,219,279.16-1,683,426.74-761,091.32

Finding the Fourth Proportional to 1,219,279.16, 1,683,426.74 and 761,091.32

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Solution

The fourth proportional to 1,219,279.16, 1,683,426.74 and 761,091.32 is: 1,050,818.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,279.16 : 1,683,426.74 = 761,091.32 : x
  2. Step 2: Convert to fraction form
    1,219,279.16/1,683,426.74 = 761,091.32/x
  3. Step 3: Cross multiply
    1,219,279.16x = 1,683,426.74 × 761,091.32
  4. Step 4: Simplify right side
    1,219,279.16x = 1,281,241,479,669.90
  5. Step 5: Solve for x
    x = 1,281,241,479,669.90/1,219,279.16
  6. Step 6: Final answer
    x = 1,050,818.81

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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.