Home / 875,396.25-1,208,139.69-513,124.48

Finding the Fourth Proportional to 875,396.25, 1,208,139.69 and 513,124.48

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Solution

The fourth proportional to 875,396.25, 1,208,139.69 and 513,124.48 is: 708,166.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,396.25 : 1,208,139.69 = 513,124.48 : x
  2. Step 2: Convert to fraction form
    875,396.25/1,208,139.69 = 513,124.48/x
  3. Step 3: Cross multiply
    875,396.25x = 1,208,139.69 × 513,124.48
  4. Step 4: Simplify right side
    875,396.25x = 619,926,053,633.00
  5. Step 5: Solve for x
    x = 619,926,053,633.00/875,396.25
  6. Step 6: Final answer
    x = 708,166.22

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Double scale
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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.