Home / 773,761.30-1,159,657.80-689,124.40

Finding the Fourth Proportional to 773,761.30, 1,159,657.80 and 689,124.40

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Solution

The fourth proportional to 773,761.30, 1,159,657.80 and 689,124.40 is: 1,032,810.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    773,761.30 : 1,159,657.80 = 689,124.40 : x
  2. Step 2: Convert to fraction form
    773,761.30/1,159,657.80 = 689,124.40/x
  3. Step 3: Cross multiply
    773,761.30x = 1,159,657.80 × 689,124.40
  4. Step 4: Simplify right side
    773,761.30x = 799,148,485,630.32
  5. Step 5: Solve for x
    x = 799,148,485,630.32/773,761.30
  6. Step 6: Final answer
    x = 1,032,810.10

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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.