Home / 753,180.80-1,128,993.60-542,088.32

Finding the Fourth Proportional to 753,180.80, 1,128,993.60 and 542,088.32

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Solution

The fourth proportional to 753,180.80, 1,128,993.60 and 542,088.32 is: 812,572.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,180.80 : 1,128,993.60 = 542,088.32 : x
  2. Step 2: Convert to fraction form
    753,180.80/1,128,993.60 = 542,088.32/x
  3. Step 3: Cross multiply
    753,180.80x = 1,128,993.60 × 542,088.32
  4. Step 4: Simplify right side
    753,180.80x = 612,014,243,914.75
  5. Step 5: Solve for x
    x = 612,014,243,914.75/753,180.80
  6. Step 6: Final answer
    x = 812,572.82

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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.