Home / 828,488.76-1,143,303.60-465,912.51

Finding the Fourth Proportional to 828,488.76, 1,143,303.60 and 465,912.51

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Solution

The fourth proportional to 828,488.76, 1,143,303.60 and 465,912.51 is: 642,953.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,488.76 : 1,143,303.60 = 465,912.51 : x
  2. Step 2: Convert to fraction form
    828,488.76/1,143,303.60 = 465,912.51/x
  3. Step 3: Cross multiply
    828,488.76x = 1,143,303.60 × 465,912.51
  4. Step 4: Simplify right side
    828,488.76x = 532,679,449,968.04
  5. Step 5: Solve for x
    x = 532,679,449,968.04/828,488.76
  6. Step 6: Final answer
    x = 642,953.14

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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.