Home / 890,128.32-1,228,567.32-580,417.52

Finding the Fourth Proportional to 890,128.32, 1,228,567.32 and 580,417.52

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Solution

The fourth proportional to 890,128.32, 1,228,567.32 and 580,417.52 is: 801,100.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,128.32 : 1,228,567.32 = 580,417.52 : x
  2. Step 2: Convert to fraction form
    890,128.32/1,228,567.32 = 580,417.52/x
  3. Step 3: Cross multiply
    890,128.32x = 1,228,567.32 × 580,417.52
  4. Step 4: Simplify right side
    890,128.32x = 713,081,997,027.45
  5. Step 5: Solve for x
    x = 713,081,997,027.45/890,128.32
  6. Step 6: Final answer
    x = 801,100.22

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1.5x scale

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.