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Finding the Fourth Proportional to 1,323,486, 1,982,070 and 761,339.52

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Solution

The fourth proportional to 1,323,486, 1,982,070 and 761,339.52 is: 1,140,192.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,323,486 : 1,982,070 = 761,339.52 : x
  2. Step 2: Convert to fraction form
    1,323,486/1,982,070 = 761,339.52/x
  3. Step 3: Cross multiply
    1,323,486x = 1,982,070 × 761,339.52
  4. Step 4: Simplify right side
    1,323,486x = 1,509,028,222,406.40
  5. Step 5: Solve for x
    x = 1,509,028,222,406.40/1,323,486
  6. Step 6: Final answer
    x = 1,140,192.06

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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.