Home / 1,219,547.52-1,683,331.20-789,811.20

Finding the Fourth Proportional to 1,219,547.52, 1,683,331.20 and 789,811.20

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Solution

The fourth proportional to 1,219,547.52, 1,683,331.20 and 789,811.20 is: 1,090,169.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,547.52 : 1,683,331.20 = 789,811.20 : x
  2. Step 2: Convert to fraction form
    1,219,547.52/1,683,331.20 = 789,811.20/x
  3. Step 3: Cross multiply
    1,219,547.52x = 1,683,331.20 × 789,811.20
  4. Step 4: Simplify right side
    1,219,547.52x = 1,329,513,835,069.44
  5. Step 5: Solve for x
    x = 1,329,513,835,069.44/1,219,547.52
  6. Step 6: Final answer
    x = 1,090,169.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.