Home / 1,285,292.31-1,927,550.28-386,495.46

Finding the Fourth Proportional to 1,285,292.31, 1,927,550.28 and 386,495.46

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Solution

The fourth proportional to 1,285,292.31, 1,927,550.28 and 386,495.46 is: 579,626.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,292.31 : 1,927,550.28 = 386,495.46 : x
  2. Step 2: Convert to fraction form
    1,285,292.31/1,927,550.28 = 386,495.46/x
  3. Step 3: Cross multiply
    1,285,292.31x = 1,927,550.28 × 386,495.46
  4. Step 4: Simplify right side
    1,285,292.31x = 744,989,424,188.74
  5. Step 5: Solve for x
    x = 744,989,424,188.74/1,285,292.31
  6. Step 6: Final answer
    x = 579,626.45

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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.