Home / 554,241.92-764,788.86-312,510.10

Finding the Fourth Proportional to 554,241.92, 764,788.86 and 312,510.10

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Solution

The fourth proportional to 554,241.92, 764,788.86 and 312,510.10 is: 431,227.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,241.92 : 764,788.86 = 312,510.10 : x
  2. Step 2: Convert to fraction form
    554,241.92/764,788.86 = 312,510.10/x
  3. Step 3: Cross multiply
    554,241.92x = 764,788.86 × 312,510.10
  4. Step 4: Simplify right side
    554,241.92x = 239,004,243,117.49
  5. Step 5: Solve for x
    x = 239,004,243,117.49/554,241.92
  6. Step 6: Final answer
    x = 431,227.29

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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.