Home / 1,285,439.02-1,927,770.33-386,642.16

Finding the Fourth Proportional to 1,285,439.02, 1,927,770.33 and 386,642.16

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Solution

The fourth proportional to 1,285,439.02, 1,927,770.33 and 386,642.16 is: 579,846.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,439.02 : 1,927,770.33 = 386,642.16 : x
  2. Step 2: Convert to fraction form
    1,285,439.02/1,927,770.33 = 386,642.16/x
  3. Step 3: Cross multiply
    1,285,439.02x = 1,927,770.33 × 386,642.16
  4. Step 4: Simplify right side
    1,285,439.02x = 745,357,285,825.02
  5. Step 5: Solve for x
    x = 745,357,285,825.02/1,285,439.02
  6. Step 6: Final answer
    x = 579,846.48

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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.