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Finding the Fourth Proportional to 440,015.80, 658,857.30 and 346,703.80

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Solution

The fourth proportional to 440,015.80, 658,857.30 and 346,703.80 is: 519,136.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,015.80 : 658,857.30 = 346,703.80 : x
  2. Step 2: Convert to fraction form
    440,015.80/658,857.30 = 346,703.80/x
  3. Step 3: Cross multiply
    440,015.80x = 658,857.30 × 346,703.80
  4. Step 4: Simplify right side
    440,015.80x = 228,428,329,567.74
  5. Step 5: Solve for x
    x = 228,428,329,567.74/440,015.80
  6. Step 6: Final answer
    x = 519,136.65

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1.5x scale

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.