Home / 1,001,041.20-1,501,561.80-812,084.40

Finding the Fourth Proportional to 1,001,041.20, 1,501,561.80 and 812,084.40

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Solution

The fourth proportional to 1,001,041.20, 1,501,561.80 and 812,084.40 is: 1,218,126.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,001,041.20 : 1,501,561.80 = 812,084.40 : x
  2. Step 2: Convert to fraction form
    1,001,041.20/1,501,561.80 = 812,084.40/x
  3. Step 3: Cross multiply
    1,001,041.20x = 1,501,561.80 × 812,084.40
  4. Step 4: Simplify right side
    1,001,041.20x = 1,219,394,913,415.92
  5. Step 5: Solve for x
    x = 1,219,394,913,415.92/1,001,041.20
  6. Step 6: Final answer
    x = 1,218,126.60

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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.