Home / 1,225,176.48-1,838,290.68-426,022.20

Finding the Fourth Proportional to 1,225,176.48, 1,838,290.68 and 426,022.20

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Solution

The fourth proportional to 1,225,176.48, 1,838,290.68 and 426,022.20 is: 639,216.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,176.48 : 1,838,290.68 = 426,022.20 : x
  2. Step 2: Convert to fraction form
    1,225,176.48/1,838,290.68 = 426,022.20/x
  3. Step 3: Cross multiply
    1,225,176.48x = 1,838,290.68 × 426,022.20
  4. Step 4: Simplify right side
    1,225,176.48x = 783,152,639,733.10
  5. Step 5: Solve for x
    x = 783,152,639,733.10/1,225,176.48
  6. Step 6: Final answer
    x = 639,216.19

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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.