Home / 1,123,629.76-1,685,612.88-413,603.68

Finding the Fourth Proportional to 1,123,629.76, 1,685,612.88 and 413,603.68

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Solution

The fourth proportional to 1,123,629.76, 1,685,612.88 and 413,603.68 is: 620,467.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,629.76 : 1,685,612.88 = 413,603.68 : x
  2. Step 2: Convert to fraction form
    1,123,629.76/1,685,612.88 = 413,603.68/x
  3. Step 3: Cross multiply
    1,123,629.76x = 1,685,612.88 × 413,603.68
  4. Step 4: Simplify right side
    1,123,629.76x = 697,175,690,223.40
  5. Step 5: Solve for x
    x = 697,175,690,223.40/1,123,629.76
  6. Step 6: Final answer
    x = 620,467.45

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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.