Home / 740,564.94-1,021,980.33-418,275.66

Finding the Fourth Proportional to 740,564.94, 1,021,980.33 and 418,275.66

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Solution

The fourth proportional to 740,564.94, 1,021,980.33 and 418,275.66 is: 577,220.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,564.94 : 1,021,980.33 = 418,275.66 : x
  2. Step 2: Convert to fraction form
    740,564.94/1,021,980.33 = 418,275.66/x
  3. Step 3: Cross multiply
    740,564.94x = 1,021,980.33 × 418,275.66
  4. Step 4: Simplify right side
    740,564.94x = 427,469,497,037.77
  5. Step 5: Solve for x
    x = 427,469,497,037.77/740,564.94
  6. Step 6: Final answer
    x = 577,220.81

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1.5x scale

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.