Home / 959,808.48-1,439,564.76-320,123.40

Finding the Fourth Proportional to 959,808.48, 1,439,564.76 and 320,123.40

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Solution

The fourth proportional to 959,808.48, 1,439,564.76 and 320,123.40 is: 480,135.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    959,808.48 : 1,439,564.76 = 320,123.40 : x
  2. Step 2: Convert to fraction form
    959,808.48/1,439,564.76 = 320,123.40/x
  3. Step 3: Cross multiply
    959,808.48x = 1,439,564.76 × 320,123.40
  4. Step 4: Simplify right side
    959,808.48x = 460,838,365,491.38
  5. Step 5: Solve for x
    x = 460,838,365,491.38/959,808.48
  6. Step 6: Final answer
    x = 480,135.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.