Home / 1,238,512.86-1,707,565.41-802,159.38

Finding the Fourth Proportional to 1,238,512.86, 1,707,565.41 and 802,159.38

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Solution

The fourth proportional to 1,238,512.86, 1,707,565.41 and 802,159.38 is: 1,105,955.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,512.86 : 1,707,565.41 = 802,159.38 : x
  2. Step 2: Convert to fraction form
    1,238,512.86/1,707,565.41 = 802,159.38/x
  3. Step 3: Cross multiply
    1,238,512.86x = 1,707,565.41 × 802,159.38
  4. Step 4: Simplify right side
    1,238,512.86x = 1,369,739,610,595.05
  5. Step 5: Solve for x
    x = 1,369,739,610,595.05/1,238,512.86
  6. Step 6: Final answer
    x = 1,105,955.10

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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.