Home / 1,138,039.29-1,570,495.91-648,009.21

Finding the Fourth Proportional to 1,138,039.29, 1,570,495.91 and 648,009.21

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Solution

The fourth proportional to 1,138,039.29, 1,570,495.91 and 648,009.21 is: 894,253.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,039.29 : 1,570,495.91 = 648,009.21 : x
  2. Step 2: Convert to fraction form
    1,138,039.29/1,570,495.91 = 648,009.21/x
  3. Step 3: Cross multiply
    1,138,039.29x = 1,570,495.91 × 648,009.21
  4. Step 4: Simplify right side
    1,138,039.29x = 1,017,695,813,947.33
  5. Step 5: Solve for x
    x = 1,017,695,813,947.33/1,138,039.29
  6. Step 6: Final answer
    x = 894,253.67

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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.