Home / 857,616.81-1,286,478.81-288,950.64

Finding the Fourth Proportional to 857,616.81, 1,286,478.81 and 288,950.64

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Solution

The fourth proportional to 857,616.81, 1,286,478.81 and 288,950.64 is: 433,444.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,616.81 : 1,286,478.81 = 288,950.64 : x
  2. Step 2: Convert to fraction form
    857,616.81/1,286,478.81 = 288,950.64/x
  3. Step 3: Cross multiply
    857,616.81x = 1,286,478.81 × 288,950.64
  4. Step 4: Simplify right side
    857,616.81x = 371,728,875,495.94
  5. Step 5: Solve for x
    x = 371,728,875,495.94/857,616.81
  6. Step 6: Final answer
    x = 433,444.02

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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.