Home / 1,148,386.96-1,584,762.44-639,080.72

Finding the Fourth Proportional to 1,148,386.96, 1,584,762.44 and 639,080.72

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Solution

The fourth proportional to 1,148,386.96, 1,584,762.44 and 639,080.72 is: 881,924.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,148,386.96 : 1,584,762.44 = 639,080.72 : x
  2. Step 2: Convert to fraction form
    1,148,386.96/1,584,762.44 = 639,080.72/x
  3. Step 3: Cross multiply
    1,148,386.96x = 1,584,762.44 × 639,080.72
  4. Step 4: Simplify right side
    1,148,386.96x = 1,012,791,121,184.16
  5. Step 5: Solve for x
    x = 1,012,791,121,184.16/1,148,386.96
  6. Step 6: Final answer
    x = 881,924.96

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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.