Home / 970,156.28-1,338,728.82-540,427.20

Finding the Fourth Proportional to 970,156.28, 1,338,728.82 and 540,427.20

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Solution

The fourth proportional to 970,156.28, 1,338,728.82 and 540,427.20 is: 745,741.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,156.28 : 1,338,728.82 = 540,427.20 : x
  2. Step 2: Convert to fraction form
    970,156.28/1,338,728.82 = 540,427.20/x
  3. Step 3: Cross multiply
    970,156.28x = 1,338,728.82 × 540,427.20
  4. Step 4: Simplify right side
    970,156.28x = 723,485,467,751.90
  5. Step 5: Solve for x
    x = 723,485,467,751.90/970,156.28
  6. Step 6: Final answer
    x = 745,741.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.