Home / 1,531,178.19-2,298,363.35-678,848.39

Finding the Fourth Proportional to 1,531,178.19, 2,298,363.35 and 678,848.39

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Solution

The fourth proportional to 1,531,178.19, 2,298,363.35 and 678,848.39 is: 1,018,980.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,531,178.19 : 2,298,363.35 = 678,848.39 : x
  2. Step 2: Convert to fraction form
    1,531,178.19/2,298,363.35 = 678,848.39/x
  3. Step 3: Cross multiply
    1,531,178.19x = 2,298,363.35 × 678,848.39
  4. Step 4: Simplify right side
    1,531,178.19x = 1,560,240,244,896.45
  5. Step 5: Solve for x
    x = 1,560,240,244,896.45/1,531,178.19
  6. Step 6: Final answer
    x = 1,018,980.19

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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.