Home / 1,128,157.54-1,692,242.07-380,210.02

Finding the Fourth Proportional to 1,128,157.54, 1,692,242.07 and 380,210.02

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Solution

The fourth proportional to 1,128,157.54, 1,692,242.07 and 380,210.02 is: 570,316.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,157.54 : 1,692,242.07 = 380,210.02 : x
  2. Step 2: Convert to fraction form
    1,128,157.54/1,692,242.07 = 380,210.02/x
  3. Step 3: Cross multiply
    1,128,157.54x = 1,692,242.07 × 380,210.02
  4. Step 4: Simplify right side
    1,128,157.54x = 643,407,391,279.54
  5. Step 5: Solve for x
    x = 643,407,391,279.54/1,128,157.54
  6. Step 6: Final answer
    x = 570,316.97

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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.