Home / 761,415-1,142,140.86-255,982.56

Finding the Fourth Proportional to 761,415, 1,142,140.86 and 255,982.56

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Solution

The fourth proportional to 761,415, 1,142,140.86 and 255,982.56 is: 383,980.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,415 : 1,142,140.86 = 255,982.56 : x
  2. Step 2: Convert to fraction form
    761,415/1,142,140.86 = 255,982.56/x
  3. Step 3: Cross multiply
    761,415x = 1,142,140.86 × 255,982.56
  4. Step 4: Simplify right side
    761,415x = 292,368,141,223.40
  5. Step 5: Solve for x
    x = 292,368,141,223.40/761,415
  6. Step 6: Final answer
    x = 383,980.01

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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.