Home / 956,988.48-1,320,631.91-521,423.97

Finding the Fourth Proportional to 956,988.48, 1,320,631.91 and 521,423.97

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Solution

The fourth proportional to 956,988.48, 1,320,631.91 and 521,423.97 is: 719,558.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    956,988.48 : 1,320,631.91 = 521,423.97 : x
  2. Step 2: Convert to fraction form
    956,988.48/1,320,631.91 = 521,423.97/x
  3. Step 3: Cross multiply
    956,988.48x = 1,320,631.91 × 521,423.97
  4. Step 4: Simplify right side
    956,988.48x = 688,609,133,420.88
  5. Step 5: Solve for x
    x = 688,609,133,420.88/956,988.48
  6. Step 6: Final answer
    x = 719,558.44

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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.