Home / 915,900.15-1,374,141.29-410,895.39

Finding the Fourth Proportional to 915,900.15, 1,374,141.29 and 410,895.39

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Solution

The fourth proportional to 915,900.15, 1,374,141.29 and 410,895.39 is: 616,473.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,900.15 : 1,374,141.29 = 410,895.39 : x
  2. Step 2: Convert to fraction form
    915,900.15/1,374,141.29 = 410,895.39/x
  3. Step 3: Cross multiply
    915,900.15x = 1,374,141.29 × 410,895.39
  4. Step 4: Simplify right side
    915,900.15x = 564,628,319,215.18
  5. Step 5: Solve for x
    x = 564,628,319,215.18/915,900.15
  6. Step 6: Final answer
    x = 616,473.66

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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.