Home / 1,374,397.64-1,896,666.90-770,780.36

Finding the Fourth Proportional to 1,374,397.64, 1,896,666.90 and 770,780.36

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Solution

The fourth proportional to 1,374,397.64, 1,896,666.90 and 770,780.36 is: 1,063,675.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,374,397.64 : 1,896,666.90 = 770,780.36 : x
  2. Step 2: Convert to fraction form
    1,374,397.64/1,896,666.90 = 770,780.36/x
  3. Step 3: Cross multiply
    1,374,397.64x = 1,896,666.90 × 770,780.36
  4. Step 4: Simplify right side
    1,374,397.64x = 1,461,913,595,982.08
  5. Step 5: Solve for x
    x = 1,461,913,595,982.08/1,374,397.64
  6. Step 6: Final answer
    x = 1,063,675.86

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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.