Home / 1,335,505.60-2,003,258.40-388,907.20

Finding the Fourth Proportional to 1,335,505.60, 2,003,258.40 and 388,907.20

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Solution

The fourth proportional to 1,335,505.60, 2,003,258.40 and 388,907.20 is: 583,360.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,335,505.60 : 2,003,258.40 = 388,907.20 : x
  2. Step 2: Convert to fraction form
    1,335,505.60/2,003,258.40 = 388,907.20/x
  3. Step 3: Cross multiply
    1,335,505.60x = 2,003,258.40 × 388,907.20
  4. Step 4: Simplify right side
    1,335,505.60x = 779,081,615,220.48
  5. Step 5: Solve for x
    x = 779,081,615,220.48/1,335,505.60
  6. Step 6: Final answer
    x = 583,360.80

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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.