Home / 1,290,707.49-1,936,187.75-470,269.18

Finding the Fourth Proportional to 1,290,707.49, 1,936,187.75 and 470,269.18

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Solution

The fourth proportional to 1,290,707.49, 1,936,187.75 and 470,269.18 is: 705,449.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,707.49 : 1,936,187.75 = 470,269.18 : x
  2. Step 2: Convert to fraction form
    1,290,707.49/1,936,187.75 = 470,269.18/x
  3. Step 3: Cross multiply
    1,290,707.49x = 1,936,187.75 × 470,269.18
  4. Step 4: Simplify right side
    1,290,707.49x = 910,529,425,518.55
  5. Step 5: Solve for x
    x = 910,529,425,518.55/1,290,707.49
  6. Step 6: Final answer
    x = 705,449.87

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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.