Home / 1,421,095.36-1,960,887.20-808,905.06

Finding the Fourth Proportional to 1,421,095.36, 1,960,887.20 and 808,905.06

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Solution

The fourth proportional to 1,421,095.36, 1,960,887.20 and 808,905.06 is: 1,116,161.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,095.36 : 1,960,887.20 = 808,905.06 : x
  2. Step 2: Convert to fraction form
    1,421,095.36/1,960,887.20 = 808,905.06/x
  3. Step 3: Cross multiply
    1,421,095.36x = 1,960,887.20 × 808,905.06
  4. Step 4: Simplify right side
    1,421,095.36x = 1,586,171,578,169.23
  5. Step 5: Solve for x
    x = 1,586,171,578,169.23/1,421,095.36
  6. Step 6: Final answer
    x = 1,116,161.25

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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.