Home / 1,742,817.60-2,405,313.82-978,871.14

Finding the Fourth Proportional to 1,742,817.60, 2,405,313.82 and 978,871.14

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Solution

The fourth proportional to 1,742,817.60, 2,405,313.82 and 978,871.14 is: 1,350,968.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,742,817.60 : 2,405,313.82 = 978,871.14 : x
  2. Step 2: Convert to fraction form
    1,742,817.60/2,405,313.82 = 978,871.14/x
  3. Step 3: Cross multiply
    1,742,817.60x = 2,405,313.82 × 978,871.14
  4. Step 4: Simplify right side
    1,742,817.60x = 2,354,492,281,041.15
  5. Step 5: Solve for x
    x = 2,354,492,281,041.15/1,742,817.60
  6. Step 6: Final answer
    x = 1,350,968.85

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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.