Home / 703,360.64-1,055,038.40-387,651.20

Finding the Fourth Proportional to 703,360.64, 1,055,038.40 and 387,651.20

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Solution

The fourth proportional to 703,360.64, 1,055,038.40 and 387,651.20 is: 581,475.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,360.64 : 1,055,038.40 = 387,651.20 : x
  2. Step 2: Convert to fraction form
    703,360.64/1,055,038.40 = 387,651.20/x
  3. Step 3: Cross multiply
    703,360.64x = 1,055,038.40 × 387,651.20
  4. Step 4: Simplify right side
    703,360.64x = 408,986,901,806.08
  5. Step 5: Solve for x
    x = 408,986,901,806.08/703,360.64
  6. Step 6: Final answer
    x = 581,475.39

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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.