Home / 1,178,690.57-1,626,599.49-688,688.87

Finding the Fourth Proportional to 1,178,690.57, 1,626,599.49 and 688,688.87

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Solution

The fourth proportional to 1,178,690.57, 1,626,599.49 and 688,688.87 is: 950,394.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,690.57 : 1,626,599.49 = 688,688.87 : x
  2. Step 2: Convert to fraction form
    1,178,690.57/1,626,599.49 = 688,688.87/x
  3. Step 3: Cross multiply
    1,178,690.57x = 1,626,599.49 × 688,688.87
  4. Step 4: Simplify right side
    1,178,690.57x = 1,120,220,956,577.68
  5. Step 5: Solve for x
    x = 1,120,220,956,577.68/1,178,690.57
  6. Step 6: Final answer
    x = 950,394.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.