Home / 1,214,170.40-1,675,774.47-724,171.32

Finding the Fourth Proportional to 1,214,170.40, 1,675,774.47 and 724,171.32

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Solution

The fourth proportional to 1,214,170.40, 1,675,774.47 and 724,171.32 is: 999,487.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,170.40 : 1,675,774.47 = 724,171.32 : x
  2. Step 2: Convert to fraction form
    1,214,170.40/1,675,774.47 = 724,171.32/x
  3. Step 3: Cross multiply
    1,214,170.40x = 1,675,774.47 × 724,171.32
  4. Step 4: Simplify right side
    1,214,170.40x = 1,213,547,809,962.20
  5. Step 5: Solve for x
    x = 1,213,547,809,962.20/1,214,170.40
  6. Step 6: Final answer
    x = 999,487.23

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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.