Home / 1,349,615.60-2,023,127.40-780,412.40

Finding the Fourth Proportional to 1,349,615.60, 2,023,127.40 and 780,412.40

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Solution

The fourth proportional to 1,349,615.60, 2,023,127.40 and 780,412.40 is: 1,169,869.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,349,615.60 : 2,023,127.40 = 780,412.40 : x
  2. Step 2: Convert to fraction form
    1,349,615.60/2,023,127.40 = 780,412.40/x
  3. Step 3: Cross multiply
    1,349,615.60x = 2,023,127.40 × 780,412.40
  4. Step 4: Simplify right side
    1,349,615.60x = 1,578,873,709,739.76
  5. Step 5: Solve for x
    x = 1,578,873,709,739.76/1,349,615.60
  6. Step 6: Final answer
    x = 1,169,869.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.