Home / 1,431,348.39-2,146,502.69-783,403.52

Finding the Fourth Proportional to 1,431,348.39, 2,146,502.69 and 783,403.52

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Solution

The fourth proportional to 1,431,348.39, 2,146,502.69 and 783,403.52 is: 1,174,820.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,348.39 : 2,146,502.69 = 783,403.52 : x
  2. Step 2: Convert to fraction form
    1,431,348.39/2,146,502.69 = 783,403.52/x
  3. Step 3: Cross multiply
    1,431,348.39x = 2,146,502.69 × 783,403.52
  4. Step 4: Simplify right side
    1,431,348.39x = 1,681,577,748,385.94
  5. Step 5: Solve for x
    x = 1,681,577,748,385.94/1,431,348.39
  6. Step 6: Final answer
    x = 1,174,820.72

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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.