Home / 1,528,086.40-2,292,129.60-772,259.20

Finding the Fourth Proportional to 1,528,086.40, 2,292,129.60 and 772,259.20

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Solution

The fourth proportional to 1,528,086.40, 2,292,129.60 and 772,259.20 is: 1,158,388.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528,086.40 : 2,292,129.60 = 772,259.20 : x
  2. Step 2: Convert to fraction form
    1,528,086.40/2,292,129.60 = 772,259.20/x
  3. Step 3: Cross multiply
    1,528,086.40x = 2,292,129.60 × 772,259.20
  4. Step 4: Simplify right side
    1,528,086.40x = 1,770,118,171,192.32
  5. Step 5: Solve for x
    x = 1,770,118,171,192.32/1,528,086.40
  6. Step 6: Final answer
    x = 1,158,388.80

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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.