Home / 678,267.63-935,974.98-402,637.28

Finding the Fourth Proportional to 678,267.63, 935,974.98 and 402,637.28

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Solution

The fourth proportional to 678,267.63, 935,974.98 and 402,637.28 is: 555,619.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,267.63 : 935,974.98 = 402,637.28 : x
  2. Step 2: Convert to fraction form
    678,267.63/935,974.98 = 402,637.28/x
  3. Step 3: Cross multiply
    678,267.63x = 935,974.98 × 402,637.28
  4. Step 4: Simplify right side
    678,267.63x = 376,858,415,415.38
  5. Step 5: Solve for x
    x = 376,858,415,415.38/678,267.63
  6. Step 6: Final answer
    x = 555,619.05

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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.