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Finding the Fourth Proportional to 886,875.90, 1,330,486.65 and 354,306.30

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Solution

The fourth proportional to 886,875.90, 1,330,486.65 and 354,306.30 is: 531,528.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,875.90 : 1,330,486.65 = 354,306.30 : x
  2. Step 2: Convert to fraction form
    886,875.90/1,330,486.65 = 354,306.30/x
  3. Step 3: Cross multiply
    886,875.90x = 1,330,486.65 × 354,306.30
  4. Step 4: Simplify right side
    886,875.90x = 471,399,802,160.90
  5. Step 5: Solve for x
    x = 471,399,802,160.90/886,875.90
  6. Step 6: Final answer
    x = 531,528.48

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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.