Home / 1,315,965.40-1,971,323.70-754,343.80

Finding the Fourth Proportional to 1,315,965.40, 1,971,323.70 and 754,343.80

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Solution

The fourth proportional to 1,315,965.40, 1,971,323.70 and 754,343.80 is: 1,130,011.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,965.40 : 1,971,323.70 = 754,343.80 : x
  2. Step 2: Convert to fraction form
    1,315,965.40/1,971,323.70 = 754,343.80/x
  3. Step 3: Cross multiply
    1,315,965.40x = 1,971,323.70 × 754,343.80
  4. Step 4: Simplify right side
    1,315,965.40x = 1,487,055,810,888.06
  5. Step 5: Solve for x
    x = 1,487,055,810,888.06/1,315,965.40
  6. Step 6: Final answer
    x = 1,130,011.33

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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.