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Finding the Fourth Proportional to 486,628.86, 666,670.37 and 468,434.84

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Solution

The fourth proportional to 486,628.86, 666,670.37 and 468,434.84 is: 641,744.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,628.86 : 666,670.37 = 468,434.84 : x
  2. Step 2: Convert to fraction form
    486,628.86/666,670.37 = 468,434.84/x
  3. Step 3: Cross multiply
    486,628.86x = 666,670.37 × 468,434.84
  4. Step 4: Simplify right side
    486,628.86x = 312,291,627,428.19
  5. Step 5: Solve for x
    x = 312,291,627,428.19/486,628.86
  6. Step 6: Final answer
    x = 641,744.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.