Home / 1,281,328.36-1,767,810.52-822,699.88

Finding the Fourth Proportional to 1,281,328.36, 1,767,810.52 and 822,699.88

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Solution

The fourth proportional to 1,281,328.36, 1,767,810.52 and 822,699.88 is: 1,135,054.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,328.36 : 1,767,810.52 = 822,699.88 : x
  2. Step 2: Convert to fraction form
    1,281,328.36/1,767,810.52 = 822,699.88/x
  3. Step 3: Cross multiply
    1,281,328.36x = 1,767,810.52 × 822,699.88
  4. Step 4: Simplify right side
    1,281,328.36x = 1,454,377,502,666.74
  5. Step 5: Solve for x
    x = 1,454,377,502,666.74/1,281,328.36
  6. Step 6: Final answer
    x = 1,135,054.49

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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.