Home / 731,712.95-1,009,096.63-628,314.67

Finding the Fourth Proportional to 731,712.95, 1,009,096.63 and 628,314.67

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Solution

The fourth proportional to 731,712.95, 1,009,096.63 and 628,314.67 is: 866,501.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,712.95 : 1,009,096.63 = 628,314.67 : x
  2. Step 2: Convert to fraction form
    731,712.95/1,009,096.63 = 628,314.67/x
  3. Step 3: Cross multiply
    731,712.95x = 1,009,096.63 × 628,314.67
  4. Step 4: Simplify right side
    731,712.95x = 634,030,211,983.03
  5. Step 5: Solve for x
    x = 634,030,211,983.03/731,712.95
  6. Step 6: Final answer
    x = 866,501.28

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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.