Home / 1,578,437.24-2,178,240.42-853,285.40

Finding the Fourth Proportional to 1,578,437.24, 2,178,240.42 and 853,285.40

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Solution

The fourth proportional to 1,578,437.24, 2,178,240.42 and 853,285.40 is: 1,177,532.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,578,437.24 : 2,178,240.42 = 853,285.40 : x
  2. Step 2: Convert to fraction form
    1,578,437.24/2,178,240.42 = 853,285.40/x
  3. Step 3: Cross multiply
    1,578,437.24x = 2,178,240.42 × 853,285.40
  4. Step 4: Simplify right side
    1,578,437.24x = 1,858,660,748,075.87
  5. Step 5: Solve for x
    x = 1,858,660,748,075.87/1,578,437.24
  6. Step 6: Final answer
    x = 1,177,532.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.