Home / 913,124.80-1,369,687.20-414,488.80

Finding the Fourth Proportional to 913,124.80, 1,369,687.20 and 414,488.80

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Solution

The fourth proportional to 913,124.80, 1,369,687.20 and 414,488.80 is: 621,733.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,124.80 : 1,369,687.20 = 414,488.80 : x
  2. Step 2: Convert to fraction form
    913,124.80/1,369,687.20 = 414,488.80/x
  3. Step 3: Cross multiply
    913,124.80x = 1,369,687.20 × 414,488.80
  4. Step 4: Simplify right side
    913,124.80x = 567,720,003,903.36
  5. Step 5: Solve for x
    x = 567,720,003,903.36/913,124.80
  6. Step 6: Final answer
    x = 621,733.20

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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.