Home / 1,686,295-2,529,256.20-424,123.12

Finding the Fourth Proportional to 1,686,295, 2,529,256.20 and 424,123.12

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Solution

The fourth proportional to 1,686,295, 2,529,256.20 and 424,123.12 is: 636,137.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,686,295 : 2,529,256.20 = 424,123.12 : x
  2. Step 2: Convert to fraction form
    1,686,295/2,529,256.20 = 424,123.12/x
  3. Step 3: Cross multiply
    1,686,295x = 2,529,256.20 × 424,123.12
  4. Step 4: Simplify right side
    1,686,295x = 1,072,716,030,823.34
  5. Step 5: Solve for x
    x = 1,072,716,030,823.34/1,686,295
  6. Step 6: Final answer
    x = 636,137.82

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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.