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Finding the Fourth Proportional to 540,709.67, 810,354.96 and 397,886.18

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Solution

The fourth proportional to 540,709.67, 810,354.96 and 397,886.18 is: 596,307.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,709.67 : 810,354.96 = 397,886.18 : x
  2. Step 2: Convert to fraction form
    540,709.67/810,354.96 = 397,886.18/x
  3. Step 3: Cross multiply
    540,709.67x = 810,354.96 × 397,886.18
  4. Step 4: Simplify right side
    540,709.67x = 322,429,035,426.68
  5. Step 5: Solve for x
    x = 322,429,035,426.68/540,709.67
  6. Step 6: Final answer
    x = 596,307.14

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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.