Home / 875,392.59-1,208,134.65-513,120.83

Finding the Fourth Proportional to 875,392.59, 1,208,134.65 and 513,120.83

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Solution

The fourth proportional to 875,392.59, 1,208,134.65 and 513,120.83 is: 708,161.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,392.59 : 1,208,134.65 = 513,120.83 : x
  2. Step 2: Convert to fraction form
    875,392.59/1,208,134.65 = 513,120.83/x
  3. Step 3: Cross multiply
    875,392.59x = 1,208,134.65 × 513,120.83
  4. Step 4: Simplify right side
    875,392.59x = 619,919,048,800.14
  5. Step 5: Solve for x
    x = 619,919,048,800.14/875,392.59
  6. Step 6: Final answer
    x = 708,161.18

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Double scale
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Similar ratio
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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.