Home / 1,057,809.60-1,586,131.20-426,009.60

Finding the Fourth Proportional to 1,057,809.60, 1,586,131.20 and 426,009.60

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Solution

The fourth proportional to 1,057,809.60, 1,586,131.20 and 426,009.60 is: 638,779.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,057,809.60 : 1,586,131.20 = 426,009.60 : x
  2. Step 2: Convert to fraction form
    1,057,809.60/1,586,131.20 = 426,009.60/x
  3. Step 3: Cross multiply
    1,057,809.60x = 1,586,131.20 × 426,009.60
  4. Step 4: Simplify right side
    1,057,809.60x = 675,707,118,059.52
  5. Step 5: Solve for x
    x = 675,707,118,059.52/1,057,809.60
  6. Step 6: Final answer
    x = 638,779.53

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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.