Home / 1,553,421.48-2,143,288.49-1,001,903.82

Finding the Fourth Proportional to 1,553,421.48, 2,143,288.49 and 1,001,903.82

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Solution

The fourth proportional to 1,553,421.48, 2,143,288.49 and 1,001,903.82 is: 1,382,347.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,553,421.48 : 2,143,288.49 = 1,001,903.82 : x
  2. Step 2: Convert to fraction form
    1,553,421.48/2,143,288.49 = 1,001,903.82/x
  3. Step 3: Cross multiply
    1,553,421.48x = 2,143,288.49 × 1,001,903.82
  4. Step 4: Simplify right side
    1,553,421.48x = 2,147,368,920,483.51
  5. Step 5: Solve for x
    x = 2,147,368,920,483.51/1,553,421.48
  6. Step 6: Final answer
    x = 1,382,347.90

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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.