Home / 761,781.66-1,051,255.71-417,619.50

Finding the Fourth Proportional to 761,781.66, 1,051,255.71 and 417,619.50

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Solution

The fourth proportional to 761,781.66, 1,051,255.71 and 417,619.50 is: 576,313.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,781.66 : 1,051,255.71 = 417,619.50 : x
  2. Step 2: Convert to fraction form
    761,781.66/1,051,255.71 = 417,619.50/x
  3. Step 3: Cross multiply
    761,781.66x = 1,051,255.71 × 417,619.50
  4. Step 4: Simplify right side
    761,781.66x = 439,024,883,982.35
  5. Step 5: Solve for x
    x = 439,024,883,982.35/761,781.66
  6. Step 6: Final answer
    x = 576,313.28

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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.