Home / 1,386,208.80-2,078,276.40-755,834.40

Finding the Fourth Proportional to 1,386,208.80, 2,078,276.40 and 755,834.40

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Solution

The fourth proportional to 1,386,208.80, 2,078,276.40 and 755,834.40 is: 1,133,186.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,208.80 : 2,078,276.40 = 755,834.40 : x
  2. Step 2: Convert to fraction form
    1,386,208.80/2,078,276.40 = 755,834.40/x
  3. Step 3: Cross multiply
    1,386,208.80x = 2,078,276.40 × 755,834.40
  4. Step 4: Simplify right side
    1,386,208.80x = 1,570,832,795,828.16
  5. Step 5: Solve for x
    x = 1,570,832,795,828.16/1,386,208.80
  6. Step 6: Final answer
    x = 1,133,186.28

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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.