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Finding the Fourth Proportional to 539,880.96, 810,312.96 and 287,373.60

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Solution

The fourth proportional to 539,880.96, 810,312.96 and 287,373.60 is: 431,322.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,880.96 : 810,312.96 = 287,373.60 : x
  2. Step 2: Convert to fraction form
    539,880.96/810,312.96 = 287,373.60/x
  3. Step 3: Cross multiply
    539,880.96x = 810,312.96 × 287,373.60
  4. Step 4: Simplify right side
    539,880.96x = 232,862,552,441.86
  5. Step 5: Solve for x
    x = 232,862,552,441.86/539,880.96
  6. Step 6: Final answer
    x = 431,322.03

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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.