Home / 1,128,157.04-1,692,241.32-380,209.52

Finding the Fourth Proportional to 1,128,157.04, 1,692,241.32 and 380,209.52

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Solution

The fourth proportional to 1,128,157.04, 1,692,241.32 and 380,209.52 is: 570,316.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,157.04 : 1,692,241.32 = 380,209.52 : x
  2. Step 2: Convert to fraction form
    1,128,157.04/1,692,241.32 = 380,209.52/x
  3. Step 3: Cross multiply
    1,128,157.04x = 1,692,241.32 × 380,209.52
  4. Step 4: Simplify right side
    1,128,157.04x = 643,406,260,001.37
  5. Step 5: Solve for x
    x = 643,406,260,001.37/1,128,157.04
  6. Step 6: Final answer
    x = 570,316.22

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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.