Home / 875,394.06-1,208,136.68-513,122.30

Finding the Fourth Proportional to 875,394.06, 1,208,136.68 and 513,122.30

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Solution

The fourth proportional to 875,394.06, 1,208,136.68 and 513,122.30 is: 708,163.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,394.06 : 1,208,136.68 = 513,122.30 : x
  2. Step 2: Convert to fraction form
    875,394.06/1,208,136.68 = 513,122.30/x
  3. Step 3: Cross multiply
    875,394.06x = 1,208,136.68 × 513,122.30
  4. Step 4: Simplify right side
    875,394.06x = 619,921,865,915.28
  5. Step 5: Solve for x
    x = 619,921,865,915.28/875,394.06
  6. Step 6: Final answer
    x = 708,163.21

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1.5x scale

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.