Home / 1,742,808.86-2,405,301.75-978,862.40

Finding the Fourth Proportional to 1,742,808.86, 2,405,301.75 and 978,862.40

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Solution

The fourth proportional to 1,742,808.86, 2,405,301.75 and 978,862.40 is: 1,350,956.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,742,808.86 : 2,405,301.75 = 978,862.40 : x
  2. Step 2: Convert to fraction form
    1,742,808.86/2,405,301.75 = 978,862.40/x
  3. Step 3: Cross multiply
    1,742,808.86x = 2,405,301.75 × 978,862.40
  4. Step 4: Simplify right side
    1,742,808.86x = 2,354,459,431,702.69
  5. Step 5: Solve for x
    x = 2,354,459,431,702.69/1,742,808.86
  6. Step 6: Final answer
    x = 1,350,956.78

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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.