Home / 811,052.40-1,119,235.95-448,491.54

Finding the Fourth Proportional to 811,052.40, 1,119,235.95 and 448,491.54

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Solution

The fourth proportional to 811,052.40, 1,119,235.95 and 448,491.54 is: 618,909.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,052.40 : 1,119,235.95 = 448,491.54 : x
  2. Step 2: Convert to fraction form
    811,052.40/1,119,235.95 = 448,491.54/x
  3. Step 3: Cross multiply
    811,052.40x = 1,119,235.95 × 448,491.54
  4. Step 4: Simplify right side
    811,052.40x = 501,967,854,838.86
  5. Step 5: Solve for x
    x = 501,967,854,838.86/811,052.40
  6. Step 6: Final answer
    x = 618,909.28

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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.