Home / 539,020.70-808,533.45-139,633.10

Finding the Fourth Proportional to 539,020.70, 808,533.45 and 139,633.10

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Solution

The fourth proportional to 539,020.70, 808,533.45 and 139,633.10 is: 209,450.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,020.70 : 808,533.45 = 139,633.10 : x
  2. Step 2: Convert to fraction form
    539,020.70/808,533.45 = 139,633.10/x
  3. Step 3: Cross multiply
    539,020.70x = 808,533.45 × 139,633.10
  4. Step 4: Simplify right side
    539,020.70x = 112,898,032,077.20
  5. Step 5: Solve for x
    x = 112,898,032,077.20/539,020.70
  6. Step 6: Final answer
    x = 209,450.27

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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.