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Finding the Fourth Proportional to 750,605.79, 1,035,909.87 and 428,364.33

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Solution

The fourth proportional to 750,605.79, 1,035,909.87 and 428,364.33 is: 591,184.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,605.79 : 1,035,909.87 = 428,364.33 : x
  2. Step 2: Convert to fraction form
    750,605.79/1,035,909.87 = 428,364.33/x
  3. Step 3: Cross multiply
    750,605.79x = 1,035,909.87 × 428,364.33
  4. Step 4: Simplify right side
    750,605.79x = 443,746,837,402.94
  5. Step 5: Solve for x
    x = 443,746,837,402.94/750,605.79
  6. Step 6: Final answer
    x = 591,184.94

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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.