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Finding the Fourth Proportional to 570,315.93, 787,074.06 and 328,614.15

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Solution

The fourth proportional to 570,315.93, 787,074.06 and 328,614.15 is: 453,509.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,315.93 : 787,074.06 = 328,614.15 : x
  2. Step 2: Convert to fraction form
    570,315.93/787,074.06 = 328,614.15/x
  3. Step 3: Cross multiply
    570,315.93x = 787,074.06 × 328,614.15
  4. Step 4: Simplify right side
    570,315.93x = 258,643,673,213.95
  5. Step 5: Solve for x
    x = 258,643,673,213.95/570,315.93
  6. Step 6: Final answer
    x = 453,509.47

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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.