Home / 1,155,299.34-1,594,190.38-638,971.18

Finding the Fourth Proportional to 1,155,299.34, 1,594,190.38 and 638,971.18

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Solution

The fourth proportional to 1,155,299.34, 1,594,190.38 and 638,971.18 is: 881,712.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,155,299.34 : 1,594,190.38 = 638,971.18 : x
  2. Step 2: Convert to fraction form
    1,155,299.34/1,594,190.38 = 638,971.18/x
  3. Step 3: Cross multiply
    1,155,299.34x = 1,594,190.38 × 638,971.18
  4. Step 4: Simplify right side
    1,155,299.34x = 1,018,641,708,253.25
  5. Step 5: Solve for x
    x = 1,018,641,708,253.25/1,155,299.34
  6. Step 6: Final answer
    x = 881,712.36

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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.