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Finding the Fourth Proportional to 554,007.24, 830,715.42 and 287,499.40

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Solution

The fourth proportional to 554,007.24, 830,715.42 and 287,499.40 is: 431,095.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,007.24 : 830,715.42 = 287,499.40 : x
  2. Step 2: Convert to fraction form
    554,007.24/830,715.42 = 287,499.40/x
  3. Step 3: Cross multiply
    554,007.24x = 830,715.42 × 287,499.40
  4. Step 4: Simplify right side
    554,007.24x = 238,830,184,820.75
  5. Step 5: Solve for x
    x = 238,830,184,820.75/554,007.24
  6. Step 6: Final answer
    x = 431,095.78

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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.