Home / 1,768,124.70-2,652,187.05-438,428.70

Finding the Fourth Proportional to 1,768,124.70, 2,652,187.05 and 438,428.70

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Solution

The fourth proportional to 1,768,124.70, 2,652,187.05 and 438,428.70 is: 657,643.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,768,124.70 : 2,652,187.05 = 438,428.70 : x
  2. Step 2: Convert to fraction form
    1,768,124.70/2,652,187.05 = 438,428.70/x
  3. Step 3: Cross multiply
    1,768,124.70x = 2,652,187.05 × 438,428.70
  4. Step 4: Simplify right side
    1,768,124.70x = 1,162,794,920,488.34
  5. Step 5: Solve for x
    x = 1,162,794,920,488.34/1,768,124.70
  6. Step 6: Final answer
    x = 657,643.05

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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.