Home / 771,239.80-1,156,859.70-653,433.40

Finding the Fourth Proportional to 771,239.80, 1,156,859.70 and 653,433.40

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Solution

The fourth proportional to 771,239.80, 1,156,859.70 and 653,433.40 is: 980,150.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,239.80 : 1,156,859.70 = 653,433.40 : x
  2. Step 2: Convert to fraction form
    771,239.80/1,156,859.70 = 653,433.40/x
  3. Step 3: Cross multiply
    771,239.80x = 1,156,859.70 × 653,433.40
  4. Step 4: Simplify right side
    771,239.80x = 755,930,767,093.98
  5. Step 5: Solve for x
    x = 755,930,767,093.98/771,239.80
  6. Step 6: Final answer
    x = 980,150.10

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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.