Home / 674,715.60-930,954.06-402,871.50

Finding the Fourth Proportional to 674,715.60, 930,954.06 and 402,871.50

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Solution

The fourth proportional to 674,715.60, 930,954.06 and 402,871.50 is: 555,871.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,715.60 : 930,954.06 = 402,871.50 : x
  2. Step 2: Convert to fraction form
    674,715.60/930,954.06 = 402,871.50/x
  3. Step 3: Cross multiply
    674,715.60x = 930,954.06 × 402,871.50
  4. Step 4: Simplify right side
    674,715.60x = 375,054,858,583.29
  5. Step 5: Solve for x
    x = 375,054,858,583.29/674,715.60
  6. Step 6: Final answer
    x = 555,871.03

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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.