Home / 1,319,751.50-1,821,261.93-716,139.50

Finding the Fourth Proportional to 1,319,751.50, 1,821,261.93 and 716,139.50

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Solution

The fourth proportional to 1,319,751.50, 1,821,261.93 and 716,139.50 is: 988,275.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,751.50 : 1,821,261.93 = 716,139.50 : x
  2. Step 2: Convert to fraction form
    1,319,751.50/1,821,261.93 = 716,139.50/x
  3. Step 3: Cross multiply
    1,319,751.50x = 1,821,261.93 × 716,139.50
  4. Step 4: Simplify right side
    1,319,751.50x = 1,304,277,607,919.23
  5. Step 5: Solve for x
    x = 1,304,277,607,919.23/1,319,751.50
  6. Step 6: Final answer
    x = 988,275.15

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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.