Home / 1,335,503.60-2,003,255.40-388,905.20

Finding the Fourth Proportional to 1,335,503.60, 2,003,255.40 and 388,905.20

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Solution

The fourth proportional to 1,335,503.60, 2,003,255.40 and 388,905.20 is: 583,357.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,335,503.60 : 2,003,255.40 = 388,905.20 : x
  2. Step 2: Convert to fraction form
    1,335,503.60/2,003,255.40 = 388,905.20/x
  3. Step 3: Cross multiply
    1,335,503.60x = 2,003,255.40 × 388,905.20
  4. Step 4: Simplify right side
    1,335,503.60x = 779,076,441,988.08
  5. Step 5: Solve for x
    x = 779,076,441,988.08/1,335,503.60
  6. Step 6: Final answer
    x = 583,357.80

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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.