Home / 699,875.80-1,049,813.70-688,211.80

Finding the Fourth Proportional to 699,875.80, 1,049,813.70 and 688,211.80

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Solution

The fourth proportional to 699,875.80, 1,049,813.70 and 688,211.80 is: 1,032,317.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,875.80 : 1,049,813.70 = 688,211.80 : x
  2. Step 2: Convert to fraction form
    699,875.80/1,049,813.70 = 688,211.80/x
  3. Step 3: Cross multiply
    699,875.80x = 1,049,813.70 × 688,211.80
  4. Step 4: Simplify right side
    699,875.80x = 722,494,176,141.66
  5. Step 5: Solve for x
    x = 722,494,176,141.66/699,875.80
  6. Step 6: Final answer
    x = 1,032,317.70

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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.