Home / 761,055.52-1,141,636.52-305,646.78

Finding the Fourth Proportional to 761,055.52, 1,141,636.52 and 305,646.78

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Solution

The fourth proportional to 761,055.52, 1,141,636.52 and 305,646.78 is: 458,491.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,055.52 : 1,141,636.52 = 305,646.78 : x
  2. Step 2: Convert to fraction form
    761,055.52/1,141,636.52 = 305,646.78/x
  3. Step 3: Cross multiply
    761,055.52x = 1,141,636.52 × 305,646.78
  4. Step 4: Simplify right side
    761,055.52x = 348,937,526,268.41
  5. Step 5: Solve for x
    x = 348,937,526,268.41/761,055.52
  6. Step 6: Final answer
    x = 458,491.55

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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.