Home / 554,041.92-764,531.97-312,383.89

Finding the Fourth Proportional to 554,041.92, 764,531.97 and 312,383.89

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Solution

The fourth proportional to 554,041.92, 764,531.97 and 312,383.89 is: 431,063.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,041.92 : 764,531.97 = 312,383.89 : x
  2. Step 2: Convert to fraction form
    554,041.92/764,531.97 = 312,383.89/x
  3. Step 3: Cross multiply
    554,041.92x = 764,531.97 × 312,383.89
  4. Step 4: Simplify right side
    554,041.92x = 238,827,470,602.19
  5. Step 5: Solve for x
    x = 238,827,470,602.19/554,041.92
  6. Step 6: Final answer
    x = 431,063.90

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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.