Home / 657,556.32-907,376.04-402,872.88

Finding the Fourth Proportional to 657,556.32, 907,376.04 and 402,872.88

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Solution

The fourth proportional to 657,556.32, 907,376.04 and 402,872.88 is: 555,932.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,556.32 : 907,376.04 = 402,872.88 : x
  2. Step 2: Convert to fraction form
    657,556.32/907,376.04 = 402,872.88/x
  3. Step 3: Cross multiply
    657,556.32x = 907,376.04 × 402,872.88
  4. Step 4: Simplify right side
    657,556.32x = 365,557,198,477.80
  5. Step 5: Solve for x
    x = 365,557,198,477.80/657,556.32
  6. Step 6: Final answer
    x = 555,932.91

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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.