Home / 1,158,123.78-1,598,169.65-641,925.70

Finding the Fourth Proportional to 1,158,123.78, 1,598,169.65 and 641,925.70

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Solution

The fourth proportional to 1,158,123.78, 1,598,169.65 and 641,925.70 is: 885,834.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,158,123.78 : 1,598,169.65 = 641,925.70 : x
  2. Step 2: Convert to fraction form
    1,158,123.78/1,598,169.65 = 641,925.70/x
  3. Step 3: Cross multiply
    1,158,123.78x = 1,598,169.65 × 641,925.70
  4. Step 4: Simplify right side
    1,158,123.78x = 1,025,906,164,089.95
  5. Step 5: Solve for x
    x = 1,025,906,164,089.95/1,158,123.78
  6. Step 6: Final answer
    x = 885,834.64

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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.