Home / 1,578,430.94-2,178,827.05-1,034,601.78

Finding the Fourth Proportional to 1,578,430.94, 2,178,827.05 and 1,034,601.78

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Solution

The fourth proportional to 1,578,430.94, 2,178,827.05 and 1,034,601.78 is: 1,428,138.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,578,430.94 : 2,178,827.05 = 1,034,601.78 : x
  2. Step 2: Convert to fraction form
    1,578,430.94/2,178,827.05 = 1,034,601.78/x
  3. Step 3: Cross multiply
    1,578,430.94x = 2,178,827.05 × 1,034,601.78
  4. Step 4: Simplify right side
    1,578,430.94x = 2,254,218,333,348.01
  5. Step 5: Solve for x
    x = 2,254,218,333,348.01/1,578,430.94
  6. Step 6: Final answer
    x = 1,428,138.71

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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.