Home / 761,907.60-1,143,021.24-288,582.48

Finding the Fourth Proportional to 761,907.60, 1,143,021.24 and 288,582.48

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Solution

The fourth proportional to 761,907.60, 1,143,021.24 and 288,582.48 is: 432,934.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,907.60 : 1,143,021.24 = 288,582.48 : x
  2. Step 2: Convert to fraction form
    761,907.60/1,143,021.24 = 288,582.48/x
  3. Step 3: Cross multiply
    761,907.60x = 1,143,021.24 × 288,582.48
  4. Step 4: Simplify right side
    761,907.60x = 329,855,904,131.88
  5. Step 5: Solve for x
    x = 329,855,904,131.88/761,907.60
  6. Step 6: Final answer
    x = 432,934.26

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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.