Home / 710,513.40-1,065,381.30-289,313.40

Finding the Fourth Proportional to 710,513.40, 1,065,381.30 and 289,313.40

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Solution

The fourth proportional to 710,513.40, 1,065,381.30 and 289,313.40 is: 433,811.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,513.40 : 1,065,381.30 = 289,313.40 : x
  2. Step 2: Convert to fraction form
    710,513.40/1,065,381.30 = 289,313.40/x
  3. Step 3: Cross multiply
    710,513.40x = 1,065,381.30 × 289,313.40
  4. Step 4: Simplify right side
    710,513.40x = 308,229,086,199.42
  5. Step 5: Solve for x
    x = 308,229,086,199.42/710,513.40
  6. Step 6: Final answer
    x = 433,811.78

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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.