Home / 1,245,009.40-1,869,263.70-772,617.40

Finding the Fourth Proportional to 1,245,009.40, 1,869,263.70 and 772,617.40

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Solution

The fourth proportional to 1,245,009.40, 1,869,263.70 and 772,617.40 is: 1,160,011.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,009.40 : 1,869,263.70 = 772,617.40 : x
  2. Step 2: Convert to fraction form
    1,245,009.40/1,869,263.70 = 772,617.40/x
  3. Step 3: Cross multiply
    1,245,009.40x = 1,869,263.70 × 772,617.40
  4. Step 4: Simplify right side
    1,245,009.40x = 1,444,225,659,808.38
  5. Step 5: Solve for x
    x = 1,444,225,659,808.38/1,245,009.40
  6. Step 6: Final answer
    x = 1,160,011.85

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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.