Home / 1,405,808.12-1,940,158.41-1,013,663.66

Finding the Fourth Proportional to 1,405,808.12, 1,940,158.41 and 1,013,663.66

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Solution

The fourth proportional to 1,405,808.12, 1,940,158.41 and 1,013,663.66 is: 1,398,959.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,808.12 : 1,940,158.41 = 1,013,663.66 : x
  2. Step 2: Convert to fraction form
    1,405,808.12/1,940,158.41 = 1,013,663.66/x
  3. Step 3: Cross multiply
    1,405,808.12x = 1,940,158.41 × 1,013,663.66
  4. Step 4: Simplify right side
    1,405,808.12x = 1,966,668,065,159.59
  5. Step 5: Solve for x
    x = 1,966,668,065,159.59/1,405,808.12
  6. Step 6: Final answer
    x = 1,398,959.11

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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.