Home / 724,983.40-1,087,863.90-304,301.80

Finding the Fourth Proportional to 724,983.40, 1,087,863.90 and 304,301.80

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Solution

The fourth proportional to 724,983.40, 1,087,863.90 and 304,301.80 is: 456,615.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,983.40 : 1,087,863.90 = 304,301.80 : x
  2. Step 2: Convert to fraction form
    724,983.40/1,087,863.90 = 304,301.80/x
  3. Step 3: Cross multiply
    724,983.40x = 1,087,863.90 × 304,301.80
  4. Step 4: Simplify right side
    724,983.40x = 331,038,942,925.02
  5. Step 5: Solve for x
    x = 331,038,942,925.02/724,983.40
  6. Step 6: Final answer
    x = 456,615.89

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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.