Home / 1,356,495.66-1,872,158.67-812,654.37

Finding the Fourth Proportional to 1,356,495.66, 1,872,158.67 and 812,654.37

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Solution

The fourth proportional to 1,356,495.66, 1,872,158.67 and 812,654.37 is: 1,121,579.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,356,495.66 : 1,872,158.67 = 812,654.37 : x
  2. Step 2: Convert to fraction form
    1,356,495.66/1,872,158.67 = 812,654.37/x
  3. Step 3: Cross multiply
    1,356,495.66x = 1,872,158.67 × 812,654.37
  4. Step 4: Simplify right side
    1,356,495.66x = 1,521,417,924,508.89
  5. Step 5: Solve for x
    x = 1,521,417,924,508.89/1,356,495.66
  6. Step 6: Final answer
    x = 1,121,579.65

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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.