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Finding the Fourth Proportional to 540,475.11, 810,746.10 and 180,678.34

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Solution

The fourth proportional to 540,475.11, 810,746.10 and 180,678.34 is: 271,028.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,475.11 : 810,746.10 = 180,678.34 : x
  2. Step 2: Convert to fraction form
    540,475.11/810,746.10 = 180,678.34/x
  3. Step 3: Cross multiply
    540,475.11x = 810,746.10 × 180,678.34
  4. Step 4: Simplify right side
    540,475.11x = 146,484,259,509.47
  5. Step 5: Solve for x
    x = 146,484,259,509.47/540,475.11
  6. Step 6: Final answer
    x = 271,028.69

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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.