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Finding the Fourth Proportional to 722,402.21, 997,585.17 and 540,798.86

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Solution

The fourth proportional to 722,402.21, 997,585.17 and 540,798.86 is: 746,804.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,402.21 : 997,585.17 = 540,798.86 : x
  2. Step 2: Convert to fraction form
    722,402.21/997,585.17 = 540,798.86/x
  3. Step 3: Cross multiply
    722,402.21x = 997,585.17 × 540,798.86
  4. Step 4: Simplify right side
    722,402.21x = 539,492,923,154.87
  5. Step 5: Solve for x
    x = 539,492,923,154.87/722,402.21
  6. Step 6: Final answer
    x = 746,804.08

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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.