Home / 307,964.80-461,947.20-289,302.40

Finding the Fourth Proportional to 307,964.80, 461,947.20 and 289,302.40

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Solution

The fourth proportional to 307,964.80, 461,947.20 and 289,302.40 is: 433,953.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,964.80 : 461,947.20 = 289,302.40 : x
  2. Step 2: Convert to fraction form
    307,964.80/461,947.20 = 289,302.40/x
  3. Step 3: Cross multiply
    307,964.80x = 461,947.20 × 289,302.40
  4. Step 4: Simplify right side
    307,964.80x = 133,642,433,633.28
  5. Step 5: Solve for x
    x = 133,642,433,633.28/307,964.80
  6. Step 6: Final answer
    x = 433,953.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.