Home / 1,742,809.86-2,405,303.13-978,863.40

Finding the Fourth Proportional to 1,742,809.86, 2,405,303.13 and 978,863.40

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Solution

The fourth proportional to 1,742,809.86, 2,405,303.13 and 978,863.40 is: 1,350,958.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,742,809.86 : 2,405,303.13 = 978,863.40 : x
  2. Step 2: Convert to fraction form
    1,742,809.86/2,405,303.13 = 978,863.40/x
  3. Step 3: Cross multiply
    1,742,809.86x = 2,405,303.13 × 978,863.40
  4. Step 4: Simplify right side
    1,742,809.86x = 2,354,463,199,862.44
  5. Step 5: Solve for x
    x = 2,354,463,199,862.44/1,742,809.86
  6. Step 6: Final answer
    x = 1,350,958.16

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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.