Home / 1,218,565.41-1,681,503.51-674,681.28

Finding the Fourth Proportional to 1,218,565.41, 1,681,503.51 and 674,681.28

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Solution

The fourth proportional to 1,218,565.41, 1,681,503.51 and 674,681.28 is: 930,995.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,565.41 : 1,681,503.51 = 674,681.28 : x
  2. Step 2: Convert to fraction form
    1,218,565.41/1,681,503.51 = 674,681.28/x
  3. Step 3: Cross multiply
    1,218,565.41x = 1,681,503.51 × 674,681.28
  4. Step 4: Simplify right side
    1,218,565.41x = 1,134,478,940,451.29
  5. Step 5: Solve for x
    x = 1,134,478,940,451.29/1,218,565.41
  6. Step 6: Final answer
    x = 930,995.52

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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.