Home / 840,370.80-1,159,669.08-458,394.48

Finding the Fourth Proportional to 840,370.80, 1,159,669.08 and 458,394.48

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Solution

The fourth proportional to 840,370.80, 1,159,669.08 and 458,394.48 is: 632,561.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,370.80 : 1,159,669.08 = 458,394.48 : x
  2. Step 2: Convert to fraction form
    840,370.80/1,159,669.08 = 458,394.48/x
  3. Step 3: Cross multiply
    840,370.80x = 1,159,669.08 × 458,394.48
  4. Step 4: Simplify right side
    840,370.80x = 531,585,904,898.68
  5. Step 5: Solve for x
    x = 531,585,904,898.68/840,370.80
  6. Step 6: Final answer
    x = 632,561.13

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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.