Home / 956,991.48-1,320,636.04-521,426.98

Finding the Fourth Proportional to 956,991.48, 1,320,636.04 and 521,426.98

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Solution

The fourth proportional to 956,991.48, 1,320,636.04 and 521,426.98 is: 719,562.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    956,991.48 : 1,320,636.04 = 521,426.98 : x
  2. Step 2: Convert to fraction form
    956,991.48/1,320,636.04 = 521,426.98/x
  3. Step 3: Cross multiply
    956,991.48x = 1,320,636.04 × 521,426.98
  4. Step 4: Simplify right side
    956,991.48x = 688,615,262,016.36
  5. Step 5: Solve for x
    x = 688,615,262,016.36/956,991.48
  6. Step 6: Final answer
    x = 719,562.58

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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.