Home / 1,138,075.77-1,570,526.16-621,818.62

Finding the Fourth Proportional to 1,138,075.77, 1,570,526.16 and 621,818.62

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Solution

The fourth proportional to 1,138,075.77, 1,570,526.16 and 621,818.62 is: 858,099.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,075.77 : 1,570,526.16 = 621,818.62 : x
  2. Step 2: Convert to fraction form
    1,138,075.77/1,570,526.16 = 621,818.62/x
  3. Step 3: Cross multiply
    1,138,075.77x = 1,570,526.16 × 621,818.62
  4. Step 4: Simplify right side
    1,138,075.77x = 976,582,415,558.90
  5. Step 5: Solve for x
    x = 976,582,415,558.90/1,138,075.77
  6. Step 6: Final answer
    x = 858,099.65

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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.