Home / 907,840.80-1,359,428.40-669,895.20

Finding the Fourth Proportional to 907,840.80, 1,359,428.40 and 669,895.20

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Solution

The fourth proportional to 907,840.80, 1,359,428.40 and 669,895.20 is: 1,003,121.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,840.80 : 1,359,428.40 = 669,895.20 : x
  2. Step 2: Convert to fraction form
    907,840.80/1,359,428.40 = 669,895.20/x
  3. Step 3: Cross multiply
    907,840.80x = 1,359,428.40 × 669,895.20
  4. Step 4: Simplify right side
    907,840.80x = 910,674,559,903.68
  5. Step 5: Solve for x
    x = 910,674,559,903.68/907,840.80
  6. Step 6: Final answer
    x = 1,003,121.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.