Home / 1,308,614.40-1,961,884.80-717,638.40

Finding the Fourth Proportional to 1,308,614.40, 1,961,884.80 and 717,638.40

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Solution

The fourth proportional to 1,308,614.40, 1,961,884.80 and 717,638.40 is: 1,075,889.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,308,614.40 : 1,961,884.80 = 717,638.40 : x
  2. Step 2: Convert to fraction form
    1,308,614.40/1,961,884.80 = 717,638.40/x
  3. Step 3: Cross multiply
    1,308,614.40x = 1,961,884.80 × 717,638.40
  4. Step 4: Simplify right side
    1,308,614.40x = 1,407,923,868,856.32
  5. Step 5: Solve for x
    x = 1,407,923,868,856.32/1,308,614.40
  6. Step 6: Final answer
    x = 1,075,889.02

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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.