Home / 1,125,869.67-1,688,551.20-518,074.97

Finding the Fourth Proportional to 1,125,869.67, 1,688,551.20 and 518,074.97

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Solution

The fourth proportional to 1,125,869.67, 1,688,551.20 and 518,074.97 is: 776,995.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,125,869.67 : 1,688,551.20 = 518,074.97 : x
  2. Step 2: Convert to fraction form
    1,125,869.67/1,688,551.20 = 518,074.97/x
  3. Step 3: Cross multiply
    1,125,869.67x = 1,688,551.20 × 518,074.97
  4. Step 4: Simplify right side
    1,125,869.67x = 874,796,103,840.71
  5. Step 5: Solve for x
    x = 874,796,103,840.71/1,125,869.67
  6. Step 6: Final answer
    x = 776,995.89

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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.