Home / 1,260,003.12-1,890,011.51-313,373.83

Finding the Fourth Proportional to 1,260,003.12, 1,890,011.51 and 313,373.83

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Solution

The fourth proportional to 1,260,003.12, 1,890,011.51 and 313,373.83 is: 470,062.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,003.12 : 1,890,011.51 = 313,373.83 : x
  2. Step 2: Convert to fraction form
    1,260,003.12/1,890,011.51 = 313,373.83/x
  3. Step 3: Cross multiply
    1,260,003.12x = 1,890,011.51 × 313,373.83
  4. Step 4: Simplify right side
    1,260,003.12x = 592,280,145,632.78
  5. Step 5: Solve for x
    x = 592,280,145,632.78/1,260,003.12
  6. Step 6: Final answer
    x = 470,062.44

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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.