Home / 1,377,385.80-2,066,078.70-817,513.80

Finding the Fourth Proportional to 1,377,385.80, 2,066,078.70 and 817,513.80

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Solution

The fourth proportional to 1,377,385.80, 2,066,078.70 and 817,513.80 is: 1,226,270.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,385.80 : 2,066,078.70 = 817,513.80 : x
  2. Step 2: Convert to fraction form
    1,377,385.80/2,066,078.70 = 817,513.80/x
  3. Step 3: Cross multiply
    1,377,385.80x = 2,066,078.70 × 817,513.80
  4. Step 4: Simplify right side
    1,377,385.80x = 1,689,047,849,136.06
  5. Step 5: Solve for x
    x = 1,689,047,849,136.06/1,377,385.80
  6. Step 6: Final answer
    x = 1,226,270.70

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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.