Home / 1,385,962.52-2,078,943.60-521,559.92

Finding the Fourth Proportional to 1,385,962.52, 2,078,943.60 and 521,559.92

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Solution

The fourth proportional to 1,385,962.52, 2,078,943.60 and 521,559.92 is: 782,339.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,962.52 : 2,078,943.60 = 521,559.92 : x
  2. Step 2: Convert to fraction form
    1,385,962.52/2,078,943.60 = 521,559.92/x
  3. Step 3: Cross multiply
    1,385,962.52x = 2,078,943.60 × 521,559.92
  4. Step 4: Simplify right side
    1,385,962.52x = 1,084,293,657,700.51
  5. Step 5: Solve for x
    x = 1,084,293,657,700.51/1,385,962.52
  6. Step 6: Final answer
    x = 782,339.81

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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.