Home / 1,116,405.36-1,540,984.84-830,312.96

Finding the Fourth Proportional to 1,116,405.36, 1,540,984.84 and 830,312.96

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Solution

The fourth proportional to 1,116,405.36, 1,540,984.84 and 830,312.96 is: 1,146,088.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,116,405.36 : 1,540,984.84 = 830,312.96 : x
  2. Step 2: Convert to fraction form
    1,116,405.36/1,540,984.84 = 830,312.96/x
  3. Step 3: Cross multiply
    1,116,405.36x = 1,540,984.84 × 830,312.96
  4. Step 4: Simplify right side
    1,116,405.36x = 1,279,499,683,815.53
  5. Step 5: Solve for x
    x = 1,279,499,683,815.53/1,116,405.36
  6. Step 6: Final answer
    x = 1,146,088.80

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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.