Home / 1,314,020.70-1,971,031.05-865,248.30

Finding the Fourth Proportional to 1,314,020.70, 1,971,031.05 and 865,248.30

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Solution

The fourth proportional to 1,314,020.70, 1,971,031.05 and 865,248.30 is: 1,297,872.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,314,020.70 : 1,971,031.05 = 865,248.30 : x
  2. Step 2: Convert to fraction form
    1,314,020.70/1,971,031.05 = 865,248.30/x
  3. Step 3: Cross multiply
    1,314,020.70x = 1,971,031.05 × 865,248.30
  4. Step 4: Simplify right side
    1,314,020.70x = 1,705,431,265,259.72
  5. Step 5: Solve for x
    x = 1,705,431,265,259.72/1,314,020.70
  6. Step 6: Final answer
    x = 1,297,872.45

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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.