Home / 761,164.88-1,141,907.64-287,839.76

Finding the Fourth Proportional to 761,164.88, 1,141,907.64 and 287,839.76

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Solution

The fourth proportional to 761,164.88, 1,141,907.64 and 287,839.76 is: 431,820.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,164.88 : 1,141,907.64 = 287,839.76 : x
  2. Step 2: Convert to fraction form
    761,164.88/1,141,907.64 = 287,839.76/x
  3. Step 3: Cross multiply
    761,164.88x = 1,141,907.64 × 287,839.76
  4. Step 4: Simplify right side
    761,164.88x = 328,686,421,039.77
  5. Step 5: Solve for x
    x = 328,686,421,039.77/761,164.88
  6. Step 6: Final answer
    x = 431,820.27

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1.5x scale

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.