Home / 771,242.40-1,159,628.40-649,591.20

Finding the Fourth Proportional to 771,242.40, 1,159,628.40 and 649,591.20

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Solution

The fourth proportional to 771,242.40, 1,159,628.40 and 649,591.20 is: 976,715.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,242.40 : 1,159,628.40 = 649,591.20 : x
  2. Step 2: Convert to fraction form
    771,242.40/1,159,628.40 = 649,591.20/x
  3. Step 3: Cross multiply
    771,242.40x = 1,159,628.40 × 649,591.20
  4. Step 4: Simplify right side
    771,242.40x = 753,284,403,910.08
  5. Step 5: Solve for x
    x = 753,284,403,910.08/771,242.40
  6. Step 6: Final answer
    x = 976,715.50

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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.