Home / 1,145,548.15-1,580,805.30-686,915.80

Finding the Fourth Proportional to 1,145,548.15, 1,580,805.30 and 686,915.80

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Solution

The fourth proportional to 1,145,548.15, 1,580,805.30 and 686,915.80 is: 947,913.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,548.15 : 1,580,805.30 = 686,915.80 : x
  2. Step 2: Convert to fraction form
    1,145,548.15/1,580,805.30 = 686,915.80/x
  3. Step 3: Cross multiply
    1,145,548.15x = 1,580,805.30 × 686,915.80
  4. Step 4: Simplify right side
    1,145,548.15x = 1,085,880,137,293.74
  5. Step 5: Solve for x
    x = 1,085,880,137,293.74/1,145,548.15
  6. Step 6: Final answer
    x = 947,913.13

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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.