Home / 1,553,907.12-2,144,555.64-909,535.92

Finding the Fourth Proportional to 1,553,907.12, 2,144,555.64 and 909,535.92

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Solution

The fourth proportional to 1,553,907.12, 2,144,555.64 and 909,535.92 is: 1,255,255.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,553,907.12 : 2,144,555.64 = 909,535.92 : x
  2. Step 2: Convert to fraction form
    1,553,907.12/2,144,555.64 = 909,535.92/x
  3. Step 3: Cross multiply
    1,553,907.12x = 2,144,555.64 × 909,535.92
  4. Step 4: Simplify right side
    1,553,907.12x = 1,950,550,387,018.59
  5. Step 5: Solve for x
    x = 1,950,550,387,018.59/1,553,907.12
  6. Step 6: Final answer
    x = 1,255,255.45

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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.