Home / 1,487,985.90-2,053,437.78-825,711.36

Finding the Fourth Proportional to 1,487,985.90, 2,053,437.78 and 825,711.36

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Solution

The fourth proportional to 1,487,985.90, 2,053,437.78 and 825,711.36 is: 1,139,491.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,487,985.90 : 2,053,437.78 = 825,711.36 : x
  2. Step 2: Convert to fraction form
    1,487,985.90/2,053,437.78 = 825,711.36/x
  3. Step 3: Cross multiply
    1,487,985.90x = 2,053,437.78 × 825,711.36
  4. Step 4: Simplify right side
    1,487,985.90x = 1,695,546,901,999.18
  5. Step 5: Solve for x
    x = 1,695,546,901,999.18/1,487,985.90
  6. Step 6: Final answer
    x = 1,139,491.24

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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.