Home / 811,075.12-1,118,911.63-524,687.56

Finding the Fourth Proportional to 811,075.12, 1,118,911.63 and 524,687.56

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Solution

The fourth proportional to 811,075.12, 1,118,911.63 and 524,687.56 is: 723,828.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,075.12 : 1,118,911.63 = 524,687.56 : x
  2. Step 2: Convert to fraction form
    811,075.12/1,118,911.63 = 524,687.56/x
  3. Step 3: Cross multiply
    811,075.12x = 1,118,911.63 × 524,687.56
  4. Step 4: Simplify right side
    811,075.12x = 587,079,006,094.05
  5. Step 5: Solve for x
    x = 587,079,006,094.05/811,075.12
  6. Step 6: Final answer
    x = 723,828.16

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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.