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Finding the Fourth Proportional to 756,653.60, 1,044,188.96 and 417,134

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Solution

The fourth proportional to 756,653.60, 1,044,188.96 and 417,134 is: 575,648.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,653.60 : 1,044,188.96 = 417,134 : x
  2. Step 2: Convert to fraction form
    756,653.60/1,044,188.96 = 417,134/x
  3. Step 3: Cross multiply
    756,653.60x = 1,044,188.96 × 417,134
  4. Step 4: Simplify right side
    756,653.60x = 435,566,717,640.64
  5. Step 5: Solve for x
    x = 435,566,717,640.64/756,653.60
  6. Step 6: Final answer
    x = 575,648.77

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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.