Home / 1,143,406.48-1,578,407.40-800,590

Finding the Fourth Proportional to 1,143,406.48, 1,578,407.40 and 800,590

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Solution

The fourth proportional to 1,143,406.48, 1,578,407.40 and 800,590 is: 1,105,168.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,143,406.48 : 1,578,407.40 = 800,590 : x
  2. Step 2: Convert to fraction form
    1,143,406.48/1,578,407.40 = 800,590/x
  3. Step 3: Cross multiply
    1,143,406.48x = 1,578,407.40 × 800,590
  4. Step 4: Simplify right side
    1,143,406.48x = 1,263,657,180,366
  5. Step 5: Solve for x
    x = 1,263,657,180,366/1,143,406.48
  6. Step 6: Final answer
    x = 1,105,168.81

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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.