Home / 509,025.47-763,412.18-172,058.72

Finding the Fourth Proportional to 509,025.47, 763,412.18 and 172,058.72

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Solution

The fourth proportional to 509,025.47, 763,412.18 and 172,058.72 is: 258,045.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,025.47 : 763,412.18 = 172,058.72 : x
  2. Step 2: Convert to fraction form
    509,025.47/763,412.18 = 172,058.72/x
  3. Step 3: Cross multiply
    509,025.47x = 763,412.18 × 172,058.72
  4. Step 4: Simplify right side
    509,025.47x = 131,351,717,845.86
  5. Step 5: Solve for x
    x = 131,351,717,845.86/509,025.47
  6. Step 6: Final answer
    x = 258,045.47

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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.