Home / 1,001,069.20-1,501,603.80-812,112.40

Finding the Fourth Proportional to 1,001,069.20, 1,501,603.80 and 812,112.40

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Solution

The fourth proportional to 1,001,069.20, 1,501,603.80 and 812,112.40 is: 1,218,168.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,001,069.20 : 1,501,603.80 = 812,112.40 : x
  2. Step 2: Convert to fraction form
    1,001,069.20/1,501,603.80 = 812,112.40/x
  3. Step 3: Cross multiply
    1,001,069.20x = 1,501,603.80 × 812,112.40
  4. Step 4: Simplify right side
    1,001,069.20x = 1,219,471,065,867.12
  5. Step 5: Solve for x
    x = 1,219,471,065,867.12/1,001,069.20
  6. Step 6: Final answer
    x = 1,218,168.60

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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.