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Finding the Fourth Proportional to 633,435.97, 874,130.82 and 343,045.18

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Solution

The fourth proportional to 633,435.97, 874,130.82 and 343,045.18 is: 473,396.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,435.97 : 874,130.82 = 343,045.18 : x
  2. Step 2: Convert to fraction form
    633,435.97/874,130.82 = 343,045.18/x
  3. Step 3: Cross multiply
    633,435.97x = 874,130.82 × 343,045.18
  4. Step 4: Simplify right side
    633,435.97x = 299,866,364,490.45
  5. Step 5: Solve for x
    x = 299,866,364,490.45/633,435.97
  6. Step 6: Final answer
    x = 473,396.49

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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.