Home / 1,209,126.60-1,815,086.70-649,254.60

Finding the Fourth Proportional to 1,209,126.60, 1,815,086.70 and 649,254.60

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Solution

The fourth proportional to 1,209,126.60, 1,815,086.70 and 649,254.60 is: 974,631.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,126.60 : 1,815,086.70 = 649,254.60 : x
  2. Step 2: Convert to fraction form
    1,209,126.60/1,815,086.70 = 649,254.60/x
  3. Step 3: Cross multiply
    1,209,126.60x = 1,815,086.70 × 649,254.60
  4. Step 4: Simplify right side
    1,209,126.60x = 1,178,453,389,373.82
  5. Step 5: Solve for x
    x = 1,178,453,389,373.82/1,209,126.60
  6. Step 6: Final answer
    x = 974,631.93

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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.