Home / 1,201,502.70-1,801,816.65-402,810.30

Finding the Fourth Proportional to 1,201,502.70, 1,801,816.65 and 402,810.30

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Solution

The fourth proportional to 1,201,502.70, 1,801,816.65 and 402,810.30 is: 604,068.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,201,502.70 : 1,801,816.65 = 402,810.30 : x
  2. Step 2: Convert to fraction form
    1,201,502.70/1,801,816.65 = 402,810.30/x
  3. Step 3: Cross multiply
    1,201,502.70x = 1,801,816.65 × 402,810.30
  4. Step 4: Simplify right side
    1,201,502.70x = 725,790,305,331.50
  5. Step 5: Solve for x
    x = 725,790,305,331.50/1,201,502.70
  6. Step 6: Final answer
    x = 604,068.81

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1.5x scale

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.