Home / 1,275,915.53-1,913,809.70-477,138.35

Finding the Fourth Proportional to 1,275,915.53, 1,913,809.70 and 477,138.35

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Solution

The fourth proportional to 1,275,915.53, 1,913,809.70 and 477,138.35 is: 715,683.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,275,915.53 : 1,913,809.70 = 477,138.35 : x
  2. Step 2: Convert to fraction form
    1,275,915.53/1,913,809.70 = 477,138.35/x
  3. Step 3: Cross multiply
    1,275,915.53x = 1,913,809.70 × 477,138.35
  4. Step 4: Simplify right side
    1,275,915.53x = 913,151,990,517.26
  5. Step 5: Solve for x
    x = 913,151,990,517.26/1,275,915.53
  6. Step 6: Final answer
    x = 715,683.74

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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.