Home / 1,145,642.90-1,720,300.35-910,937.30

Finding the Fourth Proportional to 1,145,642.90, 1,720,300.35 and 910,937.30

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Solution

The fourth proportional to 1,145,642.90, 1,720,300.35 and 910,937.30 is: 1,367,865.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,642.90 : 1,720,300.35 = 910,937.30 : x
  2. Step 2: Convert to fraction form
    1,145,642.90/1,720,300.35 = 910,937.30/x
  3. Step 3: Cross multiply
    1,145,642.90x = 1,720,300.35 × 910,937.30
  4. Step 4: Simplify right side
    1,145,642.90x = 1,567,085,756,018.06
  5. Step 5: Solve for x
    x = 1,567,085,756,018.06/1,145,642.90
  6. Step 6: Final answer
    x = 1,367,865.81

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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.