Home / 740,309.76-1,021,618.88-418,033.44

Finding the Fourth Proportional to 740,309.76, 1,021,618.88 and 418,033.44

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Solution

The fourth proportional to 740,309.76, 1,021,618.88 and 418,033.44 is: 576,881.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,309.76 : 1,021,618.88 = 418,033.44 : x
  2. Step 2: Convert to fraction form
    740,309.76/1,021,618.88 = 418,033.44/x
  3. Step 3: Cross multiply
    740,309.76x = 1,021,618.88 × 418,033.44
  4. Step 4: Simplify right side
    740,309.76x = 427,070,852,685.18
  5. Step 5: Solve for x
    x = 427,070,852,685.18/740,309.76
  6. Step 6: Final answer
    x = 576,881.29

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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.