Home / 1,071,436.35-1,478,484.27-635,778.45

Finding the Fourth Proportional to 1,071,436.35, 1,478,484.27 and 635,778.45

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Solution

The fourth proportional to 1,071,436.35, 1,478,484.27 and 635,778.45 is: 877,316.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,071,436.35 : 1,478,484.27 = 635,778.45 : x
  2. Step 2: Convert to fraction form
    1,071,436.35/1,478,484.27 = 635,778.45/x
  3. Step 3: Cross multiply
    1,071,436.35x = 1,478,484.27 × 635,778.45
  4. Step 4: Simplify right side
    1,071,436.35x = 939,988,437,529.98
  5. Step 5: Solve for x
    x = 939,988,437,529.98/1,071,436.35
  6. Step 6: Final answer
    x = 877,316.17

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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.